@inbook{19347, author = {{Eke, Norbert Otto}}, booktitle = {{Mahagonny.com. The Brecht Yearbook 29}}, pages = {{379--393}}, title = {{{Götter in der Stadt oder: „Wo Aas ist, sammeln sich die Geier!“ Stadtuntergänge bei Brecht und Trolle}}}, volume = {{29}}, year = {{2004}}, } @inbook{19348, author = {{Eke, Norbert Otto}}, booktitle = {{Crossing Media. Theater – Film – Fotografie – Neue Medien}}, editor = {{Balme, Christopher and Moninger, Markus}}, pages = {{121--146}}, publisher = {{epodium}}, title = {{{Intermedialität und Theatralisierung: Peter Greenaways Film-Theater}}}, volume = {{5}}, year = {{2004}}, } @inbook{19349, author = {{Eke, Norbert Otto}}, booktitle = {{„Der Text ist der Coyote“. Heiner Müller Bestandsaufnahme}}, editor = {{Mayer, Brigitte and Schulte, Christian}}, pages = {{51--69}}, publisher = {{Suhrkamp}}, title = {{{Eingebunkert – Stalin/Hitler: eine Konfiguration}}}, year = {{2004}}, } @article{20482, author = {{Weiß, M and Barthel, T and Baumeister, Jochen}}, journal = {{ForschungsForum}}, pages = {{62--67}}, title = {{{Stressmodelle und Analyse der Hirntätigkeit}}}, volume = {{7}}, year = {{2004}}, } @inproceedings{20931, abstract = {{Object-oriented software development is a subject area difficult to teach, espcially to beginners. They face a lot of abstraction and (from a beginners point of view) isolated topics, such as the syntax and semantics of a programming language, the functionality of a software development environment and basic object-oriented concepts. Although many professionals in education believe in the ``object first'' approach as the best method of introducing object-oriented concepts, there is no common agreement on how to start such courses. Current study programs often begin by teaching a programming language, instead of focusing on the basics of object-oriented concepts. In the last years a learning environment was developed based on a visual programming language to abstract away from details. It assists teaching step-by-step object-oriented concepts and the syntax and semantics of a programming language in secondary schools and first year university courses. Our goal is to port this learning environment to the widely used IDE Eclipse.}}, author = {{Meyer, Matthias and Wendehals, Lothar}}, booktitle = {{Proc. of the Eclipse Technology eXchange Workshop (ETX), Satellite Event of the 19th Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA), Vancouver, Canada}}, pages = {{1--5}}, publisher = {{ACM Press}}, title = {{{Teaching Object-Oriented Concepts with Eclipse}}}, year = {{2004}}, } @inproceedings{20932, abstract = {{Design recovery, which means extracting design documents from source code, is usually done by static analysis techniques. Analysing behaviour by static analysis is very imprecise. We combine static and dynamic analysis to increase the preciseness of our design recovery process. In this paper we present an approach to collect data for the dynamic analysis by recording method calls during a program's execution. To reduce the amount of information we monitor only relevant classes and methods identified by static analysis.}}, author = {{Wendehals, Lothar and Meyer, Matthias and Elsner, Andreas}}, booktitle = {{Proc. of the 2nd International Fujaba Days 2004, Darmstadt, Germany}}, pages = {{7--10}}, publisher = {{University of Paderborn}}, title = {{{Selective Tracing of Java Programs}}}, volume = {{tr-ri-04-253}}, year = {{2004}}, } @article{17969, author = {{Sureth-Sloane, Caren and Müller, Jens and Nordhoff, Daniel}}, journal = {{BBK - Buchführung, Bilanzierung, Kostenrechnung}}, number = {{11}}, pages = {{1517--1520}}, title = {{{Aktuelle Änderungen beim Betriebsausgabenabzug - Geschenke, Bewirtungskosten, Fahrtkostenzuschüsse und Halbjahres-AfA}}}, volume = {{30}}, year = {{2004}}, } @article{17986, author = {{Ziegler, Martin and Brattka, Vasco}}, journal = {{Theoretical Computer Science}}, number = {{1-3}}, pages = {{187--211}}, title = {{{Computability in linear algebra}}}, doi = {{https://doi.org/10.1016/j.tcs.2004.06.022}}, volume = {{326}}, year = {{2004}}, } @inproceedings{18260, abstract = {{For uniform computability of regular sets in Euclidean space, previous work has identified twelve 'basic' notions, to (pairs of) which many previous notions considered in literature were shown to be equivalent. With respect to those basic notions, we now investigate on the computability of natural OPERATIONS on regular sets: union, intersection, complement, convex hull, image, and pre-image under suitable classes of functions.}}, author = {{Ziegler, Martin}}, booktitle = {{Computability and Complexity in Analysis}}, issn = {{0942-5616}}, number = {{4-5}}, pages = {{392--404}}, title = {{{Computable operators on regular sets}}}, doi = {{10.1002/malq.200310107}}, volume = {{50}}, year = {{2004}}, } @inproceedings{18263, abstract = {{We generalize univariate multipoint evaluation of polynomials of degree n at sublinear amortized cost per point. More precisely, it is shown how to evaluate a bivariate polynomial p of maximum degree less than n, specified by its n^2 coefficients, simultaneously at n^2 given points using a total of O(n^2.667) arithmetic operations. In terms of the input size N being quadratic in n, this amounts to an amortized cost of O(N^0.334) per point.}}, author = {{Nüsken, Michael and Ziegler, Martin}}, booktitle = {{Proc. 12th Annual Symposium on Algorithms (ESA'04)}}, isbn = {{9783540230250}}, issn = {{0302-9743}}, pages = {{544--555}}, publisher = {{Springer}}, title = {{{Fast Multipoint Evaluation of Bivariate Polynomials}}}, doi = {{10.1007/978-3-540-30140-0_49}}, volume = {{3221}}, year = {{2004}}, } @inproceedings{18279, abstract = {{For $c in REAL$, a $c$-spanner is a subgraph of a complete Euclidean graph satisfying that between any two vertices there exists a path of weighted length at most $c$ times their geometric distance. Based on this property to approximate a complete weighted graph, sparse spanners have found many applications, e.g., in FPTAS, geometric searching, and radio networks. For geometric searching, it turned out to suffice whether the radius rather than the length of some path between any two vertices is bounded relatively to their geometric distance; this is the defining property of weak spanners. Finally regarding radio network applications, a power spanner accounts for the total energy afforded for a wireless transmission with the requirement that the sum of the squares of the lengths of some path between any two planar vertices must be bounded relatively to the square of their geometric distance (or higher powers up to 6 or even 8).

While it is known that any $c$-spanner is also both a weak $C_1$-spanner and a $C_2$-power spanner (for appropriate $C_1,C_2$ depending only on $c$ but not on the graph under consideration), we show that the converse fails: There exists a family of $c_1$-power spanners that are no weak $C$-spanners and also a family of weak $c_2$-spanners that are no $C$-spanners for any fixed $C$ (and thus no uniform spanners, either). However the deepest result of the present work reveals that, surprisingly, any weak spanner is also a uniform power spanner. We further generalize the latter notion by considering $(c,delta)$-power spanners where the sum of the $delta$-th powers of the lengths has to be bounded; so $(cdot,2)$-power spanners coincide with the usual power spanners and $(cdot,1)$-power spanners are classical spanners. Interestingly, these $(cdot,delta)$-power spanners form a strict hierarchy where the above results still hold for any $deltageq2$; some even hold for $delta>1$ while counterexamples reveal others to fail for $delta<2$. In fact we show that in general every self-similar curve of fractal dimension $d>delta$ is no $(C,delta)$-power spanner for any fixed $C$. }}, author = {{Schindelhauer, Christian and Volbert, Klaus and Ziegler, Martin}}, booktitle = {{Proc. of 15th Annual International Symposium on Algorithms and Computation (ISAAC'04)}}, isbn = {{9783540241317}}, issn = {{0302-9743}}, pages = {{805--821}}, publisher = {{Springer }}, title = {{{Spanners, Weak Spanners, and Power Spanners for Wireless Networks}}}, doi = {{10.1007/978-3-540-30551-4_69}}, volume = {{3341}}, year = {{2004}}, } @inproceedings{18364, abstract = {{The visualisation of manufacturing-processes assists the user in understanding and analysis. Typically he can move free and unguided in a virtual environment which visualizes the entire process. Thus knowledge and conclusions are to some extend acquired on a random base. This article describes the development of a tool, which enables the user to interactively improve significant production processes in the simulation. He moves in a virtual 3D-environment (walkthrough system) and is able to acquire automatically calculated indications for significant processes. At the same time the simulation considers significant objects in a more detailed way. If the viewer is interested in a significant process, he is automatically guided to the relevant location where he can examine the critical situation by modification of the simulation model.}}, author = {{Mueck, Bengt and Dangelmaier, Wilhelm and Laroque, Christoph and Fischer, Matthias and Kortenjan, Michael}}, booktitle = {{Simulation and Visualisation 2004}}, pages = {{73--83}}, publisher = {{SCS European Publishing House}}, title = {{{Guidance of Users in Interactive 3D-Visualisations of Material Flow Simulations}}}, year = {{2004}}, } @article{18447, author = {{Oesterdiekhoff, Brigitte}}, journal = {{Informatik Spektrum}}, number = {{5}}, pages = {{448--452}}, title = {{{Transcoding von Webinhalten}}}, volume = {{27}}, year = {{2004}}, } @inproceedings{18448, author = {{Oesterdiekhoff, Brigitte}}, booktitle = {{Proceedings of IFIP Working Conference on Distributed and Parallel Embedded Systems (DIPES'04)}}, title = {{{Internet Premium Services for Flexible Format Distributed Devices}}}, year = {{2004}}, } @article{22325, author = {{Kretschmer, Ralf and Denzer, Vera and Zimmer, Detmar}}, journal = {{QZ - Qualität und Zuverlässigkeit }}, number = {{11}}, pages = {{38--41}}, publisher = {{Deutsche Gesellschaft für Qualität e.V. (DGQ)}}, title = {{{Bereichsübergreifendes Toleranzmanagement. Damit es rund läuft}}}, volume = {{49}}, year = {{2004}}, } @article{23332, author = {{Koke, Isabel and Funke, Herbert and Ferber, Ferdinand}}, journal = {{Posterbeitrag AG Composite}}, title = {{{Faserverbundwerkstoffe - experimentelle Bestimmung mechanischer Kenngrößen}}}, year = {{2004}}, } @article{23333, author = {{Trächtler, Ansgar}}, journal = {{Int. J. Vehicle Design}}, number = {{1}}, pages = {{1--12,}}, title = {{{Integrated Vehicle Dynamics Control Using Active Brake, Steering, and Suspension Systems}}}, volume = {{36}}, year = {{2004}}, } @article{23334, author = {{Albert, Amos and Trächtler, Ansgar}}, journal = {{13. Aachener Kolloquium Fahrzeug- und Motorentechnik}}, pages = {{593--610,}}, title = {{{Verteilte Fahrdynamikregelung mit zeitgesteuerter Architektur am Beispiel des Bosch-Konzeptes VDM}}}, year = {{2004}}, } @article{23335, author = {{Trächtler, Ansgar}}, journal = {{CTI-Konferenz "Federung und Dämpfung"}}, title = {{{Zusammenspiel von regelbaren Feder-/Dämpfersystemen mit ESP}}}, year = {{2004}}, } @article{23336, author = {{Trächtler, Ansgar}}, journal = {{2. VDI/VDE-Fachtagung zur Steuerung und Regelung von Fahrzeugen und Motoren AUTOREG}}, pages = {{463--473,}}, title = {{{Integrierte Fahrdynamikregelung mit ESP, aktiver Lenkung und aktivem Fahrwerk}}}, year = {{2004}}, } @article{23337, author = {{Verhagen, Armin and Futterer, Sylvia and Rupprecht, Josef and Trächtler, Ansgar}}, journal = {{Proc. FISITA}}, title = {{{Vehicle Dynamics Management - Benefits of Integrated Control of Active Brake, Active Steering and Active Suspension Systems}}}, year = {{2004}}, } @inproceedings{21780, author = {{Goetz, F. and Boenning, B. and Domik, Gitta}}, booktitle = {{Proc. of The 4th IASTED International Conference on Visualization, Imgaging, and Image Processing}}, title = {{{Mapping High Quality Textures on an Interactive Globe}}}, year = {{2004}}, } @inproceedings{8951, author = {{Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}}, booktitle = {{Proceedings of the 18th International Congress on Acoustics, ICA}}, pages = {{4--9}}, title = {{{Model-based Diagnosis for Sandwiched Ultrasonic Transducers}}}, year = {{2004}}, } @inproceedings{8952, abstract = {{In turbomachinery, friction contacts are widely used to reduce dynamic stresses in turbine blades in order to avoid expensive damages. As a result of energy dissipation in the friction contacts the blade vibration amplitudes are reduced. In case of so-called friction dampers, which are pressed on the platforms of the blades by centrifugal forces, the damping effect can be optimized by varying the damper mass. This optimization can be done by means of a simulation model applying the so-called component mode synthesis and the Harmonic Balance Method to reduce computation time. It is based on the modal description of each substructure. In a real turbine or compressor blading great differences in the magnitude of the individual blade amplitudes occur caused by unavoidable mistuning of all system parameters like contact parameters and natural frequencies of the blades. It may happen that most of the blades experience only small stresses whereas a few blades experience critical stresses. Therefore, it is necessary to consider mistuning for all system parameters to simulate the forced response of bladed disk assemblies with friction contacts. For a mistuned bladed disk the complete system has to be modeled to calculate the dynamic response. In practice, usually the standard deviations instead of the distributions of the system parameters are known. Therefore, Monte-Carlo simulations are necessary to calculate the forced response of the blades for given mean values and standard deviations of the system parameters. To reduce the computational time, an approximate method has been developed and extended for small and moderate standard deviations of the system parameters to calculate the distribution and the envelopes of the frequency response functions for statistically varying system parameters, in the following called statistical mistuning. The approximate method is based on a sensitivity analysis and the assumption of a Weibull distribution of the vibration amplitudes of the blades. Both, the approximate method and the assumption of a Weibull distribution of the vibration amplitudes are validated by Monte-Carlo simulations. By these investigations the influence of different arrangements of the system parameters for given mean values and standard deviations of the vibration amplitudes of the blades can be determined, too. For the present investigations only a small influence of the arrangement of blades with respect to their natural frequencies has been observed. On the other hand, an intentional mistuning of the damper masses and the natural frequencies of the blades in a systematic way, in the following called systematic mistuning, can be investigated to reduce the amplitudes of the system. The simulation results of a systematic mistuning has been validated by a test rig with a rotating bladed disk assembly with friction dampers. The investigations show a good agreement between the simulations and the measurements but only a slight decrease of the maximum amplitudes in case of a systematic mistuning. Copyright {\copyright} 2004 by ASME}}, author = {{Götting, Florian and Sextro, Walter and Panning, Lars and Popp, Karl}}, booktitle = {{Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}}, keywords = {{Friction, Disks}}, number = {{GT2004-53310}}, pages = {{257--267}}, title = {{{Systematic mistuning of bladed disk assemblies with friction contacts}}}, volume = {{6}}, year = {{2004}}, } @inproceedings{8953, author = {{Hemsel, Tobias}}, booktitle = {{Proceedings of the First International Conference on Ultrasonic Motors and Actuators (IWOUMA)}}, title = {{{Linear piezoelectric motors and their application}}}, year = {{2004}}, } @inproceedings{9519, abstract = {{Several positioning tasks demand translatory drive instead of rotary motion. To achieve drives that are capable e.g. to drive the sunroof of a car or to lift a car's window, multiple miniaturized motors can be combined. But in this case many other questions arise: the electromechanical behavior of the individual motors differs slightly, the motor characteristics are strongly dependent on the driving parameters and the driven load, many applications need some extra power for special cases like overcoming higher forces periodically. Thus, the bundle of motors has to act well organized and controlled to get an optimized drive that is not oversized and costly.}}, author = {{Hemsel, Tobias and Mracek, Maik and Wallaschek, Jörg and Vasiljev, Piotr}}, booktitle = {{Ultrasonics Symposium, 2004 IEEE}}, issn = {{1051-0117}}, keywords = {{drives, electromechanical effects, linear motors, ultrasonic motors, car sunroof, car window, electromechanical behavior, high power ultrasonic linear motors, multiple miniaturized motors, positioning tasks, translatory drive, Costs, Electromagnetic forces, Frequency, Laboratories, Manufacturing, Mechatronics, Micromotors, Ultrasonic imaging, Vibrations, Voltage}}, number = {{Vol.2}}, pages = {{1161--1164}}, title = {{{A novel approach for high power ultrasonic linear motors}}}, doi = {{10.1109/ULTSYM.2004.1417988}}, volume = {{2}}, year = {{2004}}, } @article{9520, abstract = {{Friction, especially friction of elastomers, can cause acoustic problems like noise, squeal and comfort drawbacks like vibrations and wear. Therefore, rubber friction affects the function of many products in technical applications, e.g. seals, belts and tires. It can be classified according to different physical phenomena like adhesion, hysteresis, cohesion and viscous friction, see [3]. The topic of this paper is hysteresis friction of rubber that is caused by the energy dissipation due to internal material damping during the process of deformation. The deformation itself occurs during the sliding of a rubber element across the micro-scaled asperities of a rough surface. In this paper, the sliding process of a rubber element over real surfaces is simulated in time domain and compared to experiments. ({\^A}{\copyright} 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)}}, author = {{Lindner, Markus and Sextro, Walter and Popp, Karl}}, issn = {{1617-7061}}, journal = {{PAMM}}, number = {{1}}, pages = {{101--102}}, publisher = {{WILEY-VCH Verlag}}, title = {{{Hysteretic Friction of a Sliding Rubber Element}}}, doi = {{10.1002/pamm.200410032}}, volume = {{4}}, year = {{2004}}, } @inproceedings{9521, author = {{Littmann, Walter and Hemsel, Tobias and Wallaschek, Jörg}}, booktitle = {{Proceedings of the 18th International Congress on Acoustics}}, pages = {{2889--2892}}, title = {{{Design criteria for piezoelectric transformers}}}, volume = {{4}}, year = {{2004}}, } @inproceedings{9522, author = {{Mracek, Maik and Wallaschek, Jörg and Hemsel, Tobias}}, booktitle = {{Proceedings of the 18th International Congress on Acoustics}}, pages = {{417--420}}, title = {{{Self configuration of miniature ultrasonic linear motors}}}, year = {{2004}}, } @inproceedings{9523, abstract = {{During operation, the rotating blades of a gas turbine are subjected to centrifugal forces as well as fluctuating gas forces, resulting in blade vibrations. In addition to material damping, aerodynamical and blade root damping, underplatform dampers are widely used to increase the amount of damping and to decrease blade vibration amplitudes. The friction forces generated by the relative displacements between the underplatform damper and the blade platforms provide a significant amount of energy dissipation. In practice, a number of different underplatform damper designs are applied. Basically, these are wedge dampers with flat contact areas, cylindrical dampers with curved surfaces or asymmetrical dampers with both flat contact surfaces on one side and curved contact surfaces on the other. The latter damper type combines the advantages of both the wedge and the cylindrical damper by preventing the damper from pure rolling on the one hand as it has been observed for cylindrical dampers and on the other hand, avoiding a diverged plane area contact in case of a wedge damper, causing a damper lift-off. This paper will focus on the investigation of cylindrical and asymmetrical underplatform dampers. A comparison between measurements of rotating assemblies in Siemens PG gas turbines (V84.2, V64.3A and V94.3A(2)) under test and real operating conditions with cylindrical and asymmetrical underplatform dampers and the predictions of the developed theoretical model are presented. Special attention is paid to the frequency shift due to the application of an underplatform damper, since in particular for stationary gas turbines, in addition to the amplitude reduction, the accurate prediction of the resonance frequency is of major interest. Copyright {\copyright} 2004 by ASME}}, author = {{Panning, Lars and Popp, Karl and Sextro, Walter and Götting, Florian}}, booktitle = {{Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}}, keywords = {{Dampers, Gas turbines}}, number = {{GT2004-53316}}, pages = {{269--280}}, title = {{{Asymmetrical Underplatform Dampers in Gas Turbine Bladings: Theory and Application}}}, doi = {{10.1115/GT2004-53316}}, volume = {{6}}, year = {{2004}}, } @inproceedings{9524, author = {{Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}}, booktitle = {{Proceedings of the 18th International Congress on Acoustics, ICA}}, pages = {{4--9}}, title = {{{Model-based Diagnosis for Sandwiched Ultrasonic Transducers}}}, year = {{2004}}, } @proceedings{7782, editor = {{Engels, Gregor and Seehusen, S.}}, number = {{P-52}}, publisher = {{Gesellschaft für Informatik (GI)}}, title = {{{Proceedings of "DeLFI 2004: Die 2. e-Learning Fachtagung Informatik", Paderborn (Germany)}}}, year = {{2004}}, } @proceedings{7783, editor = {{Engels, Gregor and Sauer, Stefan}}, number = {{6}}, publisher = {{World Scientific}}, title = {{{Modeling and Development of Multimedia Systems}}}, doi = {{http://dx.doi.org/10.1142/S021819400400183X}}, volume = {{14}}, year = {{2004}}, } @proceedings{7784, editor = {{Ehrig, Hartmut and Engels, Gregor and Parisi-Presicce, F. and Rozenberg, Grzegorz}}, publisher = {{Springer}}, title = {{{Proceedings of the 2nd International Conference on Graph Transformations (ICGT 2004), Rome (Italy)}}}, doi = {{http://dx.doi.org/10.1007/b100934}}, volume = {{3256}}, year = {{2004}}, } @inproceedings{7917, author = {{Schattkowsky, Tim and Loeser, Christoph and Müller, Wolfgang}}, booktitle = {{Proceedings of the 18th International Conference on Advanced Information Networking and Applications (AINA 2004), Fukuoka (Japan)}}, pages = {{611--616}}, publisher = {{IEEE Computer Society}}, title = {{{Peer-To-Peer Technology for Interconnecting Web Services in Heterogeneous Networks}}}, year = {{2004}}, } @inproceedings{7918, author = {{Baresi, Luciano and Heckel, Reiko and Thöne, Sebastian and Varró, Dániel}}, booktitle = {{Proceedings of the conference on Software Architecture (WICSA 2004), Oslo (Norway)}}, pages = {{155--166}}, publisher = {{IEEE Computer Society}}, title = {{{Style-Based Refinement of Dynamic Software Architectures}}}, year = {{2004}}, } @inproceedings{7919, author = {{Belli, Fevzi and Güldali, Baris}}, booktitle = {{Proceedings of the conference on Computer and Information Sciences (ISCIS 2004), Kemer-Antalya (Turkey)}}, pages = {{907--916}}, publisher = {{Springer}}, title = {{{Software Testing via Model Checking}}}, doi = {{http://dx.doi.org/10.1007/b101749}}, volume = {{3280}}, year = {{2004}}, } @inproceedings{7920, author = {{Heckel, Reiko and Guo, Ping}}, booktitle = {{Proceedings of the conference on Mobile Information Systems (MOBIS 2004), Oslo (Norway)}}, pages = {{65--79}}, publisher = {{Springer}}, title = {{{Conceptual Modeling of Styles For Mobile Systems: A layered approach based on graph transformation}}}, doi = {{dx.doi.org/10.1007/0-387-22874-8_5}}, volume = {{158}}, year = {{2004}}, } @inproceedings{7921, author = {{Heckel, Reiko and Cherchago, Alexey}}, booktitle = {{Proceedings of the seminar on Language Engineering for Model-Driven Software Development (2003), Dagstuhl (Germany)}}, publisher = {{Internationales Begegnungs- und Forschungszentrum für Informatik (IBFI)}}, title = {{{Application of Graph Transformation for Automating Web Service Discovery}}}, year = {{2004}}, } @inproceedings{7922, author = {{Schattkowsky, Tim and Müller, Wolfgang}}, booktitle = {{Proceedings of the 7th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC 2004), Vienna (Austria)}}, pages = {{121--128}}, publisher = {{IEEE Computer Society}}, title = {{{Model-Based Design of Embedded Systems}}}, year = {{2004}}, } @inproceedings{7923, author = {{Cherchago, Alexey and Heckel, Reiko}}, booktitle = {{Proceedings of the conference on Graph Transformation (ICGT 2004), Rome (Italy)}}, pages = {{304--318}}, publisher = {{Springer}}, title = {{{Specification Matching of Web Services Using Conditional Graph Transformation Rules}}}, doi = {{http://dx.doi.org/10.1007/b100934}}, volume = {{3256 / 2004}}, year = {{2004}}, } @inproceedings{7924, author = {{Böttcher, Stefan and Groppe, Sven and Schattkowsky, Tim}}, booktitle = {{Proceedings of the 8th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI 2004), Orlando, FL (USA)}}, title = {{{Automated Data and Service Mapping for Integrated Electronic Markets}}}, year = {{2004}}, } @inproceedings{7925, author = {{Eden, Jonas and Weber, Matthias and Reiser, Mark-Oliver and Wierczoch, Thomas and Freund, Ulrich and Gurrieri, Orazio and Küster, Jochen and Lönn, Henrik and Migge, Jörn}}, booktitle = {{Proceedings of the 14th International Symposium and 4th European Systems Engineering Conference (INCOSE 2004), Toulouse (France)}}, pages = {{101--112}}, title = {{{An Architecture Description Language for Developing Automotive ECU-Software}}}, year = {{2004}}, } @inproceedings{7926, author = {{Engels, Gregor and Sauer, Stefan}}, booktitle = {{International Journal of Software Engineering and Knowledge Engineering (IJSEKE)}}, number = {{6}}, pages = {{543--544}}, publisher = {{World Scientific Publishing}}, title = {{{Guest Editors' Introduction}}}, doi = {{http://dx.doi.org/10.1142/S021819400400183X}}, volume = {{14}}, year = {{2004}}, } @inproceedings{7927, author = {{Guo, Ping and Heckel, Reiko}}, booktitle = {{Proceedings of the 19th IEEE international conference on Automated software engineering (ASE 2004)}}, pages = {{430--433}}, publisher = {{IEEE Computer Society}}, title = {{{Modeling and Simulation of Context-Aware Mobile Systems}}}, year = {{2004}}, } @inproceedings{7928, author = {{Guo, Ping and Heckel, Reiko}}, booktitle = {{Proceedings of the 2nd International Fujaba Days (2004), Darmstadt (Germany)}}, title = {{{Simulation and Testing of Mobile Computing Systems using Fujaba}}}, year = {{2004}}, } @inproceedings{7929, author = {{Schattkowsky, Tim and Müller, Wolfgang}}, booktitle = {{Proceedings of the conference on Design Automation and Test in Europe (DATE 2004), Paris, France}}, pages = {{1392--1393}}, publisher = {{IEEE Computer Society}}, title = {{{Model-Based Specification and Execution of Embedded Real-Time Systems}}}, doi = {{http://doi.ieeecomputersociety.org/10.1109/DATE.2004.1269103}}, volume = {{2}}, year = {{2004}}, } @inproceedings{7930, author = {{Schattkowsky, Tim}}, booktitle = {{Proceedings of the 10th International Conference on Information Systems Analysis and Synthesis (ISAS 2004), Orlando, FL (USA)}}, title = {{{Direct Execution of UML 2.0 Sequence Diagrams}}}, year = {{2004}}, } @inproceedings{7931, author = {{Schattkowsky, Tim}}, booktitle = {{Proceedings of the conference on Systemics, Cybernetics and Informatics (SCI 2004), Orlando, FL (USA)}}, title = {{{Efficient Execution of UML State Machines on a Virtual Machine}}}, year = {{2004}}, } @inproceedings{7932, author = {{Hendrik Hausmann, Jan and Heckel, Reiko and Lohmann, Marc}}, booktitle = {{Proceedings of the IEEE International Conference on Web Services (ICWS 2004)}}, pages = {{324--331}}, publisher = {{IEEE Computer Society}}, title = {{{Model-based Discovery of Web Services}}}, doi = {{http://dx.doi.org/10.1109/ICWS.2004.80}}, year = {{2004}}, } @inproceedings{7933, author = {{Schattkowsky, Tim and Loeser, Christoph and Müller, Wolfgang}}, booktitle = {{Proceedings of the International Conference on Networking (ICN 2004), Guadeloupe (France)}}, publisher = {{IEEE Computer Society}}, title = {{{Peer-to-Peer-based Web Services for Collaborative Engineering Environments}}}, year = {{2004}}, } @article{8248, author = {{Krauter, Stefan and Ochs, F.}}, journal = {{Renewable Energy}}, number = {{2}}, pages = {{153--164}}, title = {{{Integrated Solar Home System}}}, volume = {{29}}, year = {{2004}}, } @article{8249, author = {{Krauter, Stefan and Rüther, R.}}, journal = {{Renewable Energy Vol. 29, Issue 3 (2004), S. 345–355.}}, number = {{3}}, pages = {{345--355}}, title = {{{Considerations for the Calculation of Greenhouse Gas Reduction by Photovoltaic Solar Energy}}}, volume = {{29}}, year = {{2004}}, } @article{8253, author = {{Krauter, Stefan}}, journal = {{Solar Energy Materials & Solar Cells}}, pages = {{119--130}}, title = {{{Development of an integrated solar home system}}}, volume = {{82}}, year = {{2004}}, } @article{8254, author = {{Krauter, Stefan}}, journal = {{Solar Energy Materials & Solar Cells}}, pages = {{1331--137}}, title = {{{Increased electrical yield via water flow over the front of photovoltaic panels}}}, volume = {{82}}, year = {{2004}}, } @article{8290, author = {{Krauter, Stefan and Depping, T.}}, journal = {{Solar Energy Materials & Solar Cells}}, pages = {{139--150}}, title = {{{Remote PV-system monitored via satellite}}}, volume = {{82}}, year = {{2004}}, } @inproceedings{8291, author = {{Krauter, Stefan}}, booktitle = {{Words into Action – The International Conference for Renewable Energies – Bonn 2004, Faircount, London (UK), S. 175}}, title = {{{Future Visions}}}, year = {{2004}}, } @inproceedings{8292, author = {{Krauter, Stefan}}, booktitle = {{Proceedings of the Second World Renewable Energy Forum, Eurosolar, Bonn (Deutschland), 29.–31. Mai 2004}}, title = {{{Renewable Energies in Latin America}}}, year = {{2004}}, } @inproceedings{8293, author = {{Krauter, Stefan}}, booktitle = {{Proceedings of the 19th European Photovoltaic Solar Energy Conference and Exhibition, Paris (Frankreich), 7.–11. Juni 2004, S. 2399–2402}}, title = {{{Enhanced Integrated Solar Home System}}}, year = {{2004}}, } @inproceedings{8294, author = {{Krauter, Stefan}}, booktitle = {{Proceedings of the 19th European Photovoltaic Solar Energy Conference and Exhibition, Paris (Frankreich), 7.–11. Juni 2004, S. 3523–3526}}, title = {{{Photovoltaics in the Context of Carbon Trading}}}, year = {{2004}}, } @inproceedings{8295, author = {{Krauter, Stefan and Depping, T.}}, booktitle = {{Proceedings of the 19th European Photovoltaic Solar Energy Conference and Exhibition, Paris (Frankreich), 7.–11. Juni 2004, S. 3527–3530}}, title = {{{Cost Reduction and Increase of Reliability for Remote PV-Systems by Satellite}}}, year = {{2004}}, } @inproceedings{8296, author = {{Krauter, Stefan and Calvacante, F. S. A. and Cunha, M. S. and de Lima, L. C.}}, booktitle = {{Proceedings of the 19th European Photovoltaic Solar Energy Conference and Exhibition, Paris (Frankreich), 7.–11. Juni 2004, S. 3532}}, title = {{{PV in Combination with Micro Wind Turbines for Rural Household Electrification in the Northeast of Brazil}}}, year = {{2004}}, } @article{8297, author = {{Krauter, Stefan and Kissel, J.}}, journal = {{Renewable Energy World}}, number = {{July/August 2004}}, pages = {{206--267}}, publisher = {{James & James, London (UK)}}, title = {{{Renewable Energy in Latin America}}}, year = {{2004}}, } @inproceedings{8298, author = {{Krauter, Stefan}}, booktitle = {{Proceedings of the International Seminar on Hydrogen Technologies, Buenos Aires (Argentina), 7.–9. September 2004}}, title = {{{Activities concerning the Set-up of an International University for Renewable Energy}}}, year = {{2004}}, } @inproceedings{5765, abstract = {{Voting via the Internet has become a feasible option for political as well as non-political ballots. However, there are many obstacles which have to be overcome, especially legal restrictions have to be transformed into technical and security solutions. The article starts with a brief presentation of advantages and disadvantages of Internet ballots and presents application fields and pilot schemes. Then, technological security aspects are derived due to democratic basic principles. Especially the applied voting procedures are critical in security terms. Hence, the most relevant cryptographic protocols are presented and their drawbacks and shortcomings are identified. However, this article does not propose a new voting protocol. Beyond fixing cryptographic procedures for ballots, more elements are to be specified, e.g. responsibilities and rights of involved authorities or security precautions regarding hardware and software. For this reason, a structural security framework for electronic voting systems is presented which can be used for their composition and analysis.}}, author = {{Schryen, Guido}}, booktitle = {{37th Annual Hawaii International Conference on System Sciences}}, title = {{{Security Aspects of Internet Voting}}}, year = {{2004}}, } @book{6143, author = {{Kabst, Rüdiger}}, isbn = {{978-3879888443}}, title = {{{Internationalisierung mittelständischer Unternehmen: Fünf Thesen zum Auslandsmarkterfolg}}}, year = {{2004}}, } @inbook{6215, author = {{Kabst, Rüdiger and Brewster, C}}, booktitle = {{Handwörterbuch des Personalwesens}}, editor = {{Gaugler, E and Oechsler, W A and Weber, W}}, pages = {{937--944}}, title = {{{International komparatives Personalmanagement: Evidenz, Methodik & Klassiker des "Cranfield Projects on International Human Resource Management"}}}, year = {{2004}}, } @inbook{6216, author = {{Dietz, B and Hoogendoorn, J and Kabst, Rüdiger and Schmelter, A}}, booktitle = {{Human Resource Management in Europe: Evidence of Convergence?}}, editor = {{Brewster, C and Mayrhofer, W and Moley, M}}, pages = {{73--94}}, title = {{{The Netherlands and Germany: Flexibility or Rigidity}}}, year = {{2004}}, } @inbook{6217, author = {{Kabst, Rüdiger}}, booktitle = {{Personaltheorie als Beitrag zur Theorie der Unternehmung}}, editor = {{Festing, M and Martin, A and Mayrhofer, W and Nienhüser, W}}, pages = {{43--70}}, title = {{{Transaktionskostentheorie: Einführung, kritische Diskussion und Ansätze zur Weiterentwicklung}}}, year = {{2004}}, } @article{6233, author = {{Kabst, Rüdiger and Weber, W}}, journal = {{Management Revue: The International Review of Management Studies.}}, number = {{2}}, title = {{{Theoretical Perspectives for Human Resource Management: The German Discussion}}}, volume = {{15}}, year = {{2004}}, } @article{4615, author = {{Feng, Yuanhua}}, issn = {{0266-4666}}, journal = {{Econometric Theory}}, number = {{03}}, publisher = {{Cambridge University Press (CUP)}}, title = {{{SIMULTANEOUSLY MODELING CONDITIONAL HETEROSKEDASTICITY AND SCALE CHANGE}}}, doi = {{10.1017/s0266466604203061}}, volume = {{20}}, year = {{2004}}, } @book{4630, author = {{Feng, Yuanhua}}, title = {{{Non- and Semiparametric Regression with Fractional Time Series Errors}}}, year = {{2004}}, } @inbook{4634, author = {{Heiler, Siegfried and Feng, Yuanhua}}, booktitle = {{Zeitreihenanalyse in der empirischen Wirtschaftsforschung}}, editor = {{Metz, Rainer and Lösch, Manfred and Edel, Klaus}}, pages = {{67 -- 81}}, publisher = {{Lucius & Lucius}}, title = {{{A robust data-driven version of the Berlin Method}}}, year = {{2004}}, } @article{4830, author = {{Paunescu, Mihai and Schneider, Martin}}, journal = {{Schmollers Jahrbuch: Journal of Applied Social Science Studies/Zeitschrift für Wirtschafts-und Sozialwissenschaften}}, number = {{1}}, pages = {{31----59}}, title = {{{Wettbewerbsfähigkeit und Dynamik institutioneller Standortbedingungen: Ein empirischer Test des „Varieties-of-Capitalism “-Ansatzes}}}, year = {{2004}}, } @article{4891, author = {{Fahr, Rene and Sunde, Uwe}}, journal = {{Oxford Economic Papers}}, number = {{3}}, pages = {{407----435}}, title = {{{Occupational job creation: patterns and implications}}}, year = {{2004}}, } @techreport{4900, author = {{Toshihiro, KODAMA and Yoshio, HIGUCHI and Masahiro, ABE and Fahr, Rene}}, title = {{{A Comparative Analysis of Job Entry Methods in Japan, the US and Europe (Japanese)}}}, year = {{2004}}, } @inbook{4907, author = {{Fahr, Rene}}, booktitle = {{The Economics of Time Use}}, pages = {{175----203}}, title = {{{Loafing or Learning?}}}, year = {{2004}}, } @article{4923, author = {{Paunescu, Mihai and Schneider, Martin}}, journal = {{Schmollers Jahrbuch: Journal of Applied Social Science Studies/Zeitschrift f{\"u}r Wirtschafts-und Sozialwissenschaften}}, number = {{1}}, pages = {{31----59}}, title = {{{Wettbewerbsf{\"a}higkeit und Dynamik institutioneller Standortbedingungen: Ein empirischer Test des „Varieties-of-Capitalism “-Ansatzes}}}, year = {{2004}}, } @misc{4925, author = {{Eggert, A}}, title = {{{Wertorientiertes Beziehungsmarketing in Kunden-Lieferantenbeziehungen.}}}, year = {{2004}}, } @article{4927, author = {{Bliemel, Friedhelm and Eggert, Andreas and Fassott, Georg and Ballantyne, David}}, issn = {{1533-2667}}, journal = {{Journal of Relationship Marketing}}, number = {{4}}, pages = {{1--5}}, publisher = {{Informa UK Limited}}, title = {{{The Evolution of Relationship Marketing and the International Colloquia}}}, doi = {{10.1300/j366v03n04_01}}, volume = {{3}}, year = {{2004}}, } @article{7382, abstract = {{UML offers different diagram types to model behavior and dynamics of software systems. In some domains like embedded real-time systems or multimedia systems, it is necessary to include specifications of time since the correctness of these applications depends on the fulfillment of temporal requirements in addition to functional requirements. UML thus already incorporates language features to model time and temporal constraints. Such model elements must have an equivalent in the semantic domain. We have proposed Dynamic Meta Modeling (DMM) as a means for the specification of the formal operational semantics of UML models by applying graph transformation to the meta modeling of dynamic behavior. Within this paper, we extend this approach to also account for time by building on timed graph transformations. We apply these concepts to the domain of multimedia application modeling in which we adopt UML sequence diagrams. The DMM rules with time then specify an interpreter that can be used to analyze or test a model of multimedia sequence diagrams.}}, author = {{Hendrik Hausmann, Jan and Heckel, Reiko and Sauer, Stefan}}, journal = {{Software and Systems Modeling}}, number = {{3}}, pages = {{181--193}}, title = {{{Dynamic Meta Modeling with Time: Specifying the Semantics of Multimedia Sequence Diagrams}}}, volume = {{3}}, year = {{2004}}, } @inbook{7533, abstract = {{We present the adaptive cruise controller case study for B modelling and the model checking by RAVEN. Individual translations of B operations, data types, and invariants to the RAVEN Input Language are presented by the example of the case study.}}, author = {{Krupp, Alexander and Lundkvist, Ola and Schattkowsky, Tim and Snook, Colin}}, booktitle = {{UML-B System Specification for Proven Electronic Design}}, editor = {{Mermet, J. }}, publisher = {{Kluwer}}, title = {{{Adaptive Cruise Controller Case Study}}}, year = {{2004}}, } @inbook{7534, abstract = {{This article presents the E-COLLEG Tool Registration and Management Services (TRMS) with open XML-based data exchange, tool integration and remote invocation capabilities. TRMS is a workflow management middleware tailored to distance spanning engineering collaboration and security enabled data exchange. The infrastructure is validated through two industrial Intranet-crossing case studies between Polish, French, and German chip manufacturing industries applying real-world development scenarios. In both application scenarios, common engineering practices have been identified and built into engineering workflows. Further, the current truly pan-European collaborative industrial scenarios show promising results with respect to the stability of the implemented software and easy application and flexibility of the provided interfaces.}}, author = {{Schattkowsky, Tim and Mueller, Wolfgang and Pawlak, Adam}}, booktitle = {{Workflow Handbook 2004}}, editor = {{Fischer, L. }}, pages = {{5--14}}, publisher = {{Workflow Management Coalition}}, title = {{{Workflow Management Middleware for Secure Distance-Spanning Collaborative Engineering}}}, year = {{2004}}, } @phdthesis{7585, author = {{Küster, Jochen}}, title = {{{Consistency Management of Object-Oriented Behavioral Models}}}, year = {{2004}}, } @phdthesis{7586, abstract = {{This dissertation describes an approach to the visual modeling of software systems which are composed of autonomous and proactive software entities interacting with their environment. These entities are named software agents. More and more software systems are distributed, dynamic and open with respect to their environment. Software agents shall ease the development of such systems. Agent based systems provide a modular structure. They are robust and can be adapted dynamically to changing requirements. The notion of software agent relies on the fundamental properties of autonomy, proactivity and structured interaction. According to these properties agents are distinguished from objects and components. For the development of agent based systems an appropriate modeling language and a process model describing the correct usage of the language are demanded. For both aspects only unsufficient or incomplete approaches exist. This thesis contributes to the solution in the following way: A new abstract and formal model of agent based systems shows, that the fundamental properties can be expressed precisely. Differently from existing models not only a single agent but a multi agent system can be modeled. The most important architectural models of agent-based systems are compatible with the abstract model. The rather restricted structure of the abstract model motivates the refinement by a model of coupled I/Oautomata. The Unified Modeling Language is widely used in industrial software development. Therefore, the new language AML (Agent Modeling Language) for the development of agent-based systems is defined as a UML profile. The semantics of AML models is defined in the semantic domain of graph transformation. The semantic domain is restricted to an adequate agent-oriented domain. There the constituents of the fundamental agent properties are defined. Agent based systems which are described using AML are shown to be compatible with I/O-automata model of multi agent systems. Constituents for proactivity are goals and strategies. In this thesis, it is shown that the reachability of goals through the application of strategies can be checked by applying a model checking method. The new process model APM describes, how the language AML can be applied to the modeling of agent-based systems.}}, author = {{Depke, Ralph}}, title = {{{Visuelle Modellierung agentenbasierter Systeme}}}, year = {{2004}}, } @article{7678, author = {{Haberer, E. D. and Sharma, R. and Meier, Cedrik and Stonas, A. R. and Nakamura, S. and DenBaars, S. P. and Hu, E. L.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{22}}, pages = {{5179--5181}}, publisher = {{AIP Publishing}}, title = {{{Free-standing, optically pumped, GaN∕InGaN microdisk lasers fabricated by photoelectrochemical etching}}}, doi = {{10.1063/1.1829167}}, volume = {{85}}, year = {{2004}}, } @article{7679, author = {{Knipping, Jörg and Wiggers, Hartmut and Rellinghaus, Bernd and Roth, Paul and Konjhodzic, Denan and Meier, Cedrik}}, issn = {{1533-4880}}, journal = {{Journal of Nanoscience and Nanotechnology}}, number = {{8}}, pages = {{1039--1044}}, publisher = {{American Scientific Publishers}}, title = {{{Synthesis of High Purity Silicon Nanoparticles in a Low Pressure Microwave Reactor}}}, doi = {{10.1166/jnn.2004.149}}, volume = {{4}}, year = {{2004}}, } @article{7680, author = {{Wibbelhoff, O and Meier, Cedrik and Lorke, A and Schafmeister, P and Wieck, A.D}}, issn = {{1386-9477}}, journal = {{Physica E: Low-dimensional Systems and Nanostructures}}, number = {{2-4}}, pages = {{516--520}}, publisher = {{Elsevier BV}}, title = {{{Wave function mapping of self-assembled quantum dots by capacitance spectroscopy}}}, doi = {{10.1016/j.physe.2003.11.077}}, volume = {{21}}, year = {{2004}}, } @inproceedings{8386, author = {{Sendall, Shane and Hauser, Rainer and Koehler, Jana and Küster, Jochen and Wahler, Michael}}, booktitle = {{Proceedings of the Workshop on Software Transformation Systems (STS 2004, satellite event of the 3rd International Conference on Generative Programming and Component Engineering (GPCE 2004)), Vancouver (Canada)}}, title = {{{Understanding Model Transformation by Classification and Formalization}}}, year = {{2004}}, } @inproceedings{8387, author = {{Heckel, Reiko and Thöne, Sebastian}}, booktitle = {{Proceedings of the workshop on Algebraic Development Techniques (WADT 2004), Barcelona (Spain)}}, pages = {{1--27}}, publisher = {{Springer}}, title = {{{Behavior-Preserving Refinement Relations between Dynamic Software Architectures}}}, volume = {{3423}}, year = {{2004}}, } @inproceedings{8388, author = {{Heckel, Reiko and Cherchago, Alexey and Lohmann, Marc}}, booktitle = {{Proceedings of the First International Workshop on Web Services and Formal Methods (WSFM 2004), Pisa, Italy}}, pages = {{37--49}}, publisher = {{Elsevier}}, title = {{{A Formal Approach to Service Specification and Matching based on Graph Transformation}}}, doi = {{http://dx.doi.org/10.1016/j.entcs.2004.05.006}}, volume = {{105}}, year = {{2004}}, } @inproceedings{8389, author = {{Küster, Jochen}}, booktitle = {{Proceedings 3rd UML Workshop in Software Model Engineering (WiSME 2004), Lisbon (Portugal)}}, title = {{{Systematic Validation of Model Transformations}}}, year = {{2004}}, } @inproceedings{8390, author = {{Küster, Jochen and Sendall, Shane and Wahler, Michael}}, booktitle = {{Proceedings of the Workshop on OCL and Model Driven Engineering (satellite event of the UML 2004), Lisbon (Portugal)}}, pages = {{114--127}}, publisher = {{University of Kent}}, title = {{{Comparing two Model Transformation Approaches}}}, year = {{2004}}, } @inproceedings{8391, author = {{Küster, Jochen}}, booktitle = {{International Workshop on Graph Transformation (GT-VMT 2004), Barcelona (Spain)}}, pages = {{57--69}}, publisher = {{Elsevier}}, title = {{{Towards Inconsistency Handling of Object-Oriented Behavioral Models}}}, doi = {{http://dx.doi.org/10.1016/j.entcs.2004.02.056}}, volume = {{109}}, year = {{2004}}, } @inproceedings{8392, author = {{Schattkowsky, Tim and Rettberg, Achim}}, booktitle = {{Proceedings of the International Workshop on UML for SoC Design (UML-SOC 2004), San Diego, CA (USA)}}, title = {{{UML for FPGA Synthesis}}}, year = {{2004}}, } @inproceedings{8393, author = {{Sendall, Shane and Küster, Jochen}}, booktitle = {{Proceedings of Workshop on Best Practices for Model-Driven Software Development (satellite event of the 19th Annual ACM Conference on Object-Oriented Programming, Systems, Languages, and Applications (OOPSLA 2004)), Vancouver (Canada)}}, title = {{{Taming Model Round-Trip Engineering}}}, year = {{2004}}, } @inbook{8450, author = {{Kremer, H.-Hugo}}, booktitle = {{Networked Learning 2004. A research based conference on e-learning in higher education and lifelong learning}}, editor = {{Banks, S. and Goodyear, P. and Hodgson, V. and Jones, C. and Lally, V. and McConnel, D. and Steeples, C.}}, pages = {{751--752}}, title = {{{Virtual conference: a telecooperative learning environment}}}, year = {{2004}}, } @inbook{8451, author = {{Deißinger, T. and Kremer, H.-Hugo}}, booktitle = {{Theorie-Praxis-Verzahnung in der beruflichen und gymnsasialen Lehrerbildung. Das Praxissemester in Baden-Württemberg.}}, editor = {{Backes-Haase, A. and Frommer, H.}}, pages = {{88--105}}, title = {{{Organisation und didaktische Ausrichtung des "Praxissemesters" im Rahmen des Diplomstudiengangs Wirtschaftspädagogik an der Universität Konstanz}}}, year = {{2004}}, } @inbook{8452, author = {{Kremer, H.-Hugo}}, booktitle = {{Lernfelder gestalten - miteinander Lernen - Innovationen vernetzen. Ergebnisse der 1. CULIK Fachtagung (12.05.2004)}}, editor = {{Gramlinger, F. and Steinemann, S. and Tramm, T.}}, title = {{{Qualifizierungsnetzwerke - Lernumgebung für Lehrkräfte?}}}, year = {{2004}}, } @inbook{8453, author = {{Kremer, H.-Hugo}}, booktitle = {{The annual conference of the Association for Information Technology in Teacher Education}}, editor = {{Bennett, R.}}, title = {{{Virtual conference - a cooperative learning environment for teacher education?}}}, year = {{2004}}, }