@article{16148, author = {{Mernberger, M. and Klebe, G. and Hüllermeier, Eyke}}, journal = {{IEEE/ACM Transactions of Computational Biology and Bioinformatics}}, number = {{5}}, pages = {{1330--1343}}, title = {{{SEGA: Semi-global graph alignment for structure-based protein comparison}}}, volume = {{8}}, year = {{2011}}, } @article{16149, author = {{Fober, T. and Glinca, S. and Klebe, G. and Hüllermeier, Eyke}}, journal = {{IEEE/ACM Transactions on Computational Biology and Bioinformatics}}, number = {{6}}, pages = {{1653--1666}}, title = {{{Superposition and alignment of labeled point clouds}}}, volume = {{8}}, year = {{2011}}, } @article{1615, author = {{Warneke, Daniel and Dannewitz, Christian}}, issn = {{1798-2340}}, journal = {{Journal of Advances in Information Technology}}, number = {{1}}, publisher = {{Engineering and Technology Publishing}}, title = {{{Load Balancing in P2P Networks: Using Statistics to Fight Data and Execution Skew}}}, doi = {{10.4304/jait.2.1.40-49}}, volume = {{2}}, year = {{2011}}, } @article{16150, author = {{Hüllermeier, Eyke}}, journal = {{Applied Soft Computing Journal}}, pages = {{1493--1505}}, title = {{{Fuzzy sets in machine learning and data mining}}}, year = {{2011}}, } @article{16153, author = {{Senge, Robin and Hüllermeier, Eyke}}, journal = {{IEEE Transactions on Fuzzy Systems}}, number = {{2}}, pages = {{241--252}}, title = {{{Top-down induction of fuzzy pattern trees}}}, volume = {{19}}, year = {{2011}}, } @article{16239, author = {{Hankeln, Frederik and Mahnken, Rolf}}, issn = {{1617-7061}}, journal = {{PAMM}}, pages = {{379--380}}, title = {{{Simulation of Deep Drawing of Carbon Fibre Prepregs}}}, doi = {{10.1002/pamm.201110181}}, year = {{2011}}, } @book{1624, author = {{Krimphove, Dieter}}, pages = {{159}}, publisher = {{Kohlhammer}}, title = {{{Werberecht (Gesetze, Urteile, Fälle und Lösungen, Sprachfassung auf interaktiver CD)}}}, year = {{2011}}, } @inbook{16409, abstract = {{Given a set of n mobile robots in the d-dimensional Euclidean space, the goal is to let them converge to a single not predefined point. The challenge is that the robots are limited in their capabilities. Robots can, upon activation, compute the positions of all other robots using an individual affine coordinate system. The robots are indistinguishable, oblivious and may have different affine coordinate systems. A very general discrete time model assumes that robots are activated in arbitrary order. Further, the computation of a new target point may happen much earlier than the movement, so that the movement is based on outdated information about other robot's positions. Time is measured as the number of rounds, where a round ends as soon as each robot has moved at least once. In [Cohen, Peleg: Convergence properties of gravitational algorithms in asynchronous robot systems], the Center of Gravity is considered as target function, convergence was proven, and the number of rounds needed for halving the diameter of the convex hull of the robot's positions was shown to be O(n^2) and Omega(n). We present an easy-to-check property of target functions that guarantee convergence and yields upper time bounds. This property intuitively says that when a robot computes a new target point, this point is significantly within the current axes aligned minimal box containing all robots. This property holds, e.g., for the above-mentioned target function, and improves the above O(n^2) to an asymptotically optimal O(n) upper bound. Our technique also yields a constant time bound for a target function that requires all robots having identical coordinate axes. }}, author = {{Cord-Landwehr, Andreas and Degener, Bastian and Fischer, Matthias and Hüllmann, Martina and Kempkes, Barbara and Klaas, Alexander and Kling, Peter and Kurras, Sven and Märtens, Marcus and Meyer auf der Heide, Friedhelm and Raupach, Christoph and Swierkot, Kamil and Warner, Daniel and Weddemann, Christoph and Wonisch, Daniel}}, booktitle = {{Automata, Languages and Programming}}, isbn = {{9783642220111}}, issn = {{0302-9743}}, title = {{{A New Approach for Analyzing Convergence Algorithms for Mobile Robots}}}, doi = {{10.1007/978-3-642-22012-8_52}}, year = {{2011}}, } @inproceedings{14010, abstract = {{Die Modellierung bzw. das virtuelle Design von Ultraschallwandlern spielt gerade im Hinblick auf die Mannigfaltigkeit ihrer Einsatzgebiete und die stetig wachsenden Anforderungen der Industrie eine Schlüsselrolle bei der Entwicklung piezoelektrischer Sensor- und Aktorsysteme. Der jeweils für eine spezielle Anwendung zu erreichende Grad der Realitätsnähe der eingesetzten Modelle ist dabei essentielle Voraussetzung für die Legitimation des virtuellen Designs. Neben idealisierten Strukturen, welche der Modellbildung unweigerlich anhaften, wird die Realitätsnähe wesentlich durch die genutzten Materialmodelle und deren Parametrisierung beeinflusst. Viele Arbeiten wurden aus diesem Grund auf dem Gebiet der akustischen Materialdaten-bestimmung sowohl passiver als auch aktiver Materialien durchgeführt. Ein Ultraschallwandler besteht nun aus einer Komposition von aktiven und passiven Elementen, welche z. B. mittels Klebungen zusammengef{\"u}gt werden. Aktuelle Praxis ist die Vernachl{\"a}ssigung der Klebschichteigenschaften oder ggf. eine Korrektur der durch die Klebschichtdicke hervorgerufene Frequenzverschiebung durch eine virtuelle Vergr{\"o}{\ss}erung eines der F{\"u}geteile. Dabei werden die Koppelbedingungen zwischen den gef{\"u}gten Materialien als ideal angenommen, was in der Realit{\"a}t jedoch nicht der Fall ist. Klebungen sind weder isotrop noch homogen aufgebaut. Des Weiteren ist ihre Dicke sehr klein, was in der Computersimulation dazu f{\"u}hrt, dass sie {\"u}ber effektive Parameter und stark vereinfachte Modelle beschrieben werden.}}, author = {{Bause, Fabian}}, title = {{{Die Auswirkung verschiedener Klebungen auf das Verhalten eines piezoelektrischen Wandlers}}}, year = {{2011}}, } @inproceedings{14011, abstract = {{Ultraschallsensoren werden heute in der Industrie vielfach erfolgreich für die verschiedensten Messaufgaben eingesetzt und ständig weiterentwickelt. Wesentliche aktuelle Entwicklungen zielen auf die Erweiterung der Funktionalität (adaptierbare Abstrahlcharakteristik, scannende Sensoren …), die Erhöhung der Zuverlässigkeit, die Miniaturisierung sowie auf die Reduktion der Gerätekosten (Materialsubstitution) und Fertigungskosten (Konstruktion und Montage). }}, author = {{Henning, Bernd}}, title = {{{Von der Messaufgabe zum Sensorsystem}}}, year = {{2011}}, } @misc{14012, author = {{Bause, Fabian and Olfert, Sergei and Schröder, Andreas and Rautenberg, Jens and Henning, Bernd and Moritzer, Elmar}}, booktitle = {{Journal of Electronic Measurement and Instrument }}, title = {{{Ultrasonic Nondestructive Testing of composite materials using disturbed coincidence conditions}}}, year = {{2011}}, } @inproceedings{14013, abstract = {{Modeling and simulation play a key-role in computer-assisted design of ultrasonic sensors. The accuracy of those numerical or analytical models highly depends on the material dataset chosen as well as on the digitized simplified geometry. Thus, researchers worked on techniques how to measure material datasets of piezoceramics or passive materials (i.e. polymers) for use in simulation [Rau08] [Rup09]. Most computer models neglect the influence of adhesive bonds between those active and passive material components used to form a complete ultrasonic transducer and thus imply perfect interface layers. To gain a more accurate model one need to go further and consider non-perfect interface layers between assembly parts. Because adhesive bonds are neither necessarily isotropic nor homogeneous and their geometric dimensions are very small, we need to define effective material datasets dependent on the model used in simulation. In this contribution the indicator under study is the electric impedance of the active element. We will show the influence of different adhesives used to adhere metal electrodes on piezoceramic discs. Therefore, we use several different types of adhesives (epoxies, cyanoacrylates and perfluorpolyether grease) and different sizes of piezoceramic discs (PIC 255, manufacturer: PI Ceramic GmbH) of the same batch (thickness, diameter). The electrodes have been cut from one plate made of stainless steel using a laser to avoid uncertainty effects due to variations in material-parameters. The probes have been prepared in an air-conditioned Lab with constant temperature and humidity. The indicators considered to identify the effect of those different adhesive films are extracted from the electric impedance of the electromechanical converter.}}, author = {{Bause, Fabian and Rautenberg, Jens and Henning, Bernd}}, location = {{Chengdu, China}}, pages = {{18--23}}, title = {{{Analyzing the effect of adhered metal electrodes on piezoelectric elements using different types of adhesives}}}, volume = {{3}}, year = {{2011}}, } @article{14014, abstract = {{Nowadays ultrasonic distance sensors are widely used in automobiles, robotics and in industrial automation. Some functional principles of usable transducers for airborne ultrasonic distance measurements are shown. As every sensor principle, ultrasonic distance sensors have pros and cons which lead to some problems and challenges described below. For the main challenges (crosstalk and blind zone) some trends and solutions are presented.}}, author = {{Henning, Bernd and Schröder, Andreas}}, journal = {{Journal of Electronic Measurement and Instrument}}, number = {{7}}, pages = {{577--581}}, title = {{{Ultrasonic distance sensors - An overview and trends}}}, volume = {{25}}, year = {{2011}}, } @inproceedings{14015, abstract = {{Es gibt unterschiedliche Methoden, um räumliche Schallwechseldruckverteilungen in Flüssigkeiten zu erfassen. Viele dieser Verfahren haben zwei Nachteile. Sie sind zum einen invasiv, beeinflussen somit die sich ausbreitende Ultraschallwelle, und zum anderen sehr zeitaufwendig. Die Visualisierung von Ultraschallfeldern mittels Schlierenmethode ist eine schnelle und einfache Methode, um zweidimensionale Schallfelder nichtinvasiv zu analysieren. Ein besonderer Vorteil besteht darin, dass man unmittelbar resultierende Veränderungen im Schallfeld zum Beispiel bei Frequenzänderung, Sensorausrichtung… beobachten kann. In diesem Beitrag werden zwei dieser Verfahren vorgestellt. Die modifizierte Schlierenmethode nach Toepler, das im Weiteren als modifizierte Schlierenmethode bezeichnet wird, und die Hintergrund-schlierenmethode, das sich bisher hauptsächlich zur Strömungsvisualisierung etabliert hat [1]. Im ersten Teil werden beide Messverfahren erläutert, die realisierten Messaufbauten sowie Einsatzmöglichkeiten für die Schallfeldcharakterisierung kurz vorgestellt. Im zweiten Teil werden beide Verfahren verglichen und die Vor- und Nachteile bezüglich ausgewählter Messaufgaben bewertet. }}, author = {{Olfert, Sergei and Henning, Bernd}}, location = {{Düsseldorf}}, title = {{{Vergleich zwischen der Schlierenmethode nach Toepler und der Hintergrundschlierenmethode zur Bestimmung akustischer Grössen eines Ultraschallwandlers}}}, year = {{2011}}, } @inproceedings{14016, abstract = {{There has been a lot of progress in finding measurable quantities of high in- formation content for the inverse determination of piezoelectric material properties. Since some material parameters (mainly \textgreek{e}S 11, e15and cE 44) do not or only marginally influence the electrical impedance over frequency, it is not sufficient to look only at the electri- cal impedance of discoidal piezoceramics [1]. Moreover, the parameter sensitivities vary with respect to the diameter--thickness ratio of the disc and the design of an ultrasonic transducer's piezoceramic has to match other requirements than those of a good material characterization [2, 3]. That is why it is still desirable to find model based approaches for parameter identification that either keep the technical effort low (e.g., only an impedance measurement) or increase speed of the inversion procedure. In this contribution we answer the question if an additional analytical approximation of cE 44, strictly following the ideas of Theocaris [4], in conjunction with a single measured elec- trical impedance will be sufficient for an accurate simulation of both, electrical impedance and surface normal velocity of a piezoceramic disc. Thereby, the remaining parameters are identified by means of the Inverse Method. Furthermore, we use the parameter ap- proximation as an initial guess and limiting boundary to speed up the inverse algorithm if both, electrical impedance and surface normal velocity are taken into account within the optimization procedure.}}, author = {{Rautenberg, Jens and Rupitsch, Stefan J. and Henning, Bernd and Lerch, Reinhard}}, booktitle = {{7th International Workshop on Direct and Inverse Problems in Piezoelectricity}}, title = {{{Utilizing an Analytical Approximation for c44E to Enhance the Inverse Method for Material Parameter Identification of Piezoceramics}}}, year = {{2011}}, } @inproceedings{14548, abstract = {{Bei der Luftultraschall-Abstandsmessung mit einem einzelnen Schallwandler ist der Mindestabstand durch die Sendesignaldauer und die Ausschwingzeit des Schallwandlers begrenzt. Daher führt die Verwendung von codierten Sendesignalen, wie sie z.B. für die Unterscheidung mehrerer Sender genutzt werden können, im Allgemeinen zu einer Vergrößerung des Mindestabstandes. Dieser Beitrag zeigt, dass der Mindestabstand bei codierten Sendesignalen durch eine geeignete Signalverarbeitung, bei der eine Trennung des Sende- und Empfangssignals erfolgt, deutlich verringert werden kann.}}, author = {{Schröder, Andreas and Henning, Bernd}}, location = {{Düsseldorf}}, title = {{{Luftultraschall-Abstandsmessung mit verkürztem Mindestabstand}}}, year = {{2011}}, } @inproceedings{14549, abstract = {{Simultaneous transmitting and receiving (STaR) enhances the utilization of single transducer ultrasound measurement systems. In distance measurement applications the dead zone can be reduced to nearly zero, independent of the transmitted signal. So it is possible to transmit codedsignals to identify different sensors without increasing the minimum distance. The electrical transducer signal consists of the electrical transmitted and received signal. A separation of these two signals can be done with a mathematical model of the electrical system. For this purpose it is necessary to digitize the electrical transducer signal. Due to the relative small amplitude of the received signal compared to the transmitted signal amplitude, a high resolution analog to digital converter (ADC) is needed. This leads to high requirements for the ADC. The necessary resolution limits the sample rate of the ADC. By down mixing the transducer signal using a coherent quadrature demodulation (CQD), as used in many high frequency ultrasound applications, the sample rate of the ADC can be reduced. In this contribution an airborne ultrasound distance measurement system with reduced dead zone is used to analyze the effects of this concept to the signal conditioning, system identification and system performance. The approach is compared with a system without CQD and an ADC with a lower resolution but a higher sample rate. By analyzing the pros and cons of both systems the usability of a CQD based system for a STaR application is evaluated. The distance measurement system used for the experiments is based on a 40 kHz airborne ultrasonic transducer. A gyrator based transmit amplifier delivers a system bandwidth of about 10 kHz. In the experiments, coded transmitted signals are used to measure the distance to a metal reflector. The main objectives are short distances between 0 mm and 200 mm. Here a separation of transmitted and received signal is necessary. The reflector distance is calculated by a cross correlation between transmitted and received signal.}}, author = {{Schröder, Andreas and Henning, Bernd}}, title = {{{Model based separation of transmitted and received signal for single transducer distance measurement applications}}}, year = {{2011}}, } @inproceedings{14550, abstract = {{For many applications like level measurement and industry robotics it is of advantage if the directional characteristic of an ultrasonic transducer is changeable or adaptable for the improvement of spatial resolution. Often this goal is reached with the use of ultrasonic transducer arrays, which elements are driven with phase shifted excitation signals. One disadvantage of these solutions is the great effort for building such an array and the multi-channel sensor electronics. In this contribution the directional characteristic of a single air transducer with segmented electrodes is analyzed. Therefore a variable script based finite element model is used to discover the influence of different electrode configurations on the directional characteristic of a single piezoceramic transducer. Especially the influence on the angle of beam and the near field length are evaluated. The used variable model permits an optimization of the configuration with regards to the mentioned criteria. The findings will be used for the development of a level measurement system for bulk solids.}}, author = {{Unverzagt, Carsten and Henning, Bernd}}, keywords = {{Elektrode}}, location = {{Gdansk, Poland}}, title = {{{Finite element simulation of single ultrasonic transducer with segmented electrodes to adjust the directional characteristic}}}, year = {{2011}}, } @inproceedings{13053, author = {{Cook, Alejandro and Hellebrand, Sybille and Indlekofer, Thomas and Wunderlich, Hans-Joachim}}, booktitle = {{5. GMM/GI/ITG Fachtagung "Zuverlässigkeit und Entwurf"}}, pages = {{48--53}}, title = {{{Robuster Selbsttest mit Diagnose}}}, year = {{2011}}, } @inproceedings{13194, author = {{Dembczynski, K. and Waegeman, W. and Cheng, W. and Hüllermeier, Eyke}}, booktitle = {{In Proceedings NIPS-2011, 25th Annual Conference on Neural Information Processing Systems, Granada, Spain}}, title = {{{An exact algorithm for F-measure maximization}}}, year = {{2011}}, } @inproceedings{13195, author = {{Cheng, W. and Fuernkranz, J. and Hüllermeier, Eyke and Park, S.H.}}, booktitle = {{Proceedings ECML/PKDD-2011, European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Athens, Greece, }}, title = {{{Preference-based policy iteration: Leveraging preference learning for reinforcement learning}}}, year = {{2011}}, } @inproceedings{13196, author = {{Fürnkranz, J. and Hüllermeier, Eyke}}, booktitle = {{in Proceedings DS-2011, 14th International Conference on Discovery Science, number 6926 in LNAI}}, editor = {{Elomaa, T. and Hollmen, J. and Mannila, H.}}, pages = {{2--17}}, publisher = {{Springer}}, title = {{{Learning from label preferences}}}, year = {{2011}}, } @inproceedings{13197, author = {{Fallah Tehrani, A. and Cheng, W. and Dembczynski, K. and Hüllermeier, Eyke}}, booktitle = {{In Proceedings ECML/PKDD-2011, European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Athens, Greece,}}, title = {{{Learning monotone nonlinear models using the Choquet integral}}}, year = {{2011}}, } @inproceedings{13198, author = {{Hüllermeier, Eyke and Schlegel, P.}}, booktitle = {{In Proceedings ICCBR-2011, 19th International Conference on Case-Based Reasoning, number 6880 in LNAI}}, editor = {{Ram, A. and Wiratunga, N.}}, pages = {{77--91}}, publisher = {{Springer}}, title = {{{Preference-based CBR: First steps toward a methodological framework}}}, year = {{2011}}, } @inproceedings{13206, author = {{Trier, Matthias and Richter, Alexander and Mörl, Susanne and Koch, Michael}}, booktitle = {{10th International Conference on Wirtschaftsinformatik}}, editor = {{Bernstein, A and Schwabe, G}}, title = {{{Anwendungsszenarien als Werkzeug zur (V) Ermittlung des Nutzens von corporate social software}}}, year = {{2011}}, } @article{13256, author = {{Ahn, Junghyun and Borowiec, Anna and Buckley, Kevan and Cai, Di and Chmiel, Anna and Czaplicka, Agnieszka and Dąbrowski, Grzegorz and Garas, Antonios and Garcia, David and Gobron, Stéphane and Hillmann, Robert and Hołyst, Janusz and Kappas, Arvid and Küster, Dennis and Mitrovic, Marija and Paltoglou, Georgios and Pirker, Hannes and Rank, Stefan and Schweitzer, Frank and Sienkiewicz, Julian and Skowron, Marcin and Sobkowicz, Paweł and Thalmann, Daniel and Thelwall, Mike and Theunis, Mathias and Trier, Matthias and Tsankova, Elena and Weronski, Paweł}}, issn = {{1877-0509}}, journal = {{Procedia Computer Science}}, pages = {{221--222}}, title = {{{CYBEREMOTIONS – Collective Emotions in Cyberspace}}}, doi = {{10.1016/j.procs.2011.09.076}}, year = {{2011}}, } @inbook{13265, author = {{Trier, Matthias and Bobrik, Annette}}, booktitle = {{Netzwerkanalyse und Netzwerktheorie}}, isbn = {{9783531173276}}, title = {{{Dynamische Analyse von Netzwerken elektronischer Kommunikation. Kann der Zentralität getraut werden?}}}, doi = {{10.1007/978-3-531-92029-0_25}}, year = {{2011}}, } @inproceedings{13345, author = {{Richter, Alexander and Mörl, Susanne and Trier, Matthias and Koch, Michael}}, pages = {{1104--1113}}, title = {{{Anwendungsszenarien als Werkzeug zur (V)Ermittlung des Nutzens von Corporate Social Software}}}, year = {{2011}}, } @article{13561, author = {{Berth, Gerhard and Hahn, Wjatscheslaw and Wiedemeier, Volker and Zrenner, Artur and Sanna, Simone and Schmidt, Wolf Gero}}, issn = {{0015-0193}}, journal = {{Ferroelectrics}}, pages = {{44--48}}, title = {{{Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy}}}, doi = {{10.1080/00150193.2011.594774}}, volume = {{420}}, year = {{2011}}, } @article{13563, author = {{Schmidt, Wolf Gero and Babilon, M. and Thierfelder, C. and Sanna, S. and Wippermann, S.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{11}}, title = {{{Influence of Na adsorption on the quantum conductance and metal-insulator transition of the In-Si(111)(4×1)–(8×2) nanowire array}}}, doi = {{10.1103/physrevb.84.115416}}, volume = {{84}}, year = {{2011}}, } @article{13564, author = {{dos Santos, L. S. and Schmidt, Wolf Gero and Rauls, E.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{11}}, title = {{{Group-VII point defects in ZnSe}}}, doi = {{10.1103/physrevb.84.115201}}, volume = {{84}}, year = {{2011}}, } @article{13565, author = {{Müllegger, Stefan and Schöfberger, Wolfgang and Rashidi, Mohammad and Lengauer, Thomas and Klappenberger, Florian and Diller, Katharina and Kara, Kamuran and Barth, Johannes V. and Rauls, Eva and Schmidt, Wolf Gero and Koch, Reinhold}}, issn = {{1936-0851}}, journal = {{ACS Nano}}, number = {{8}}, pages = {{6480--6486}}, title = {{{Preserving Charge and Oxidation State of Au(III) Ions in an Agent-Functionalized Nanocrystal Model System}}}, doi = {{10.1021/nn201708c}}, volume = {{5}}, year = {{2011}}, } @article{13566, author = {{Hoehne, Felix and Lu, Jinming and Stegner, Andre R. and Stutzmann, Martin and Brandt, Martin S. and Rohrmüller, Martin and Schmidt, Wolf Gero and Gerstmann, Uwe}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{19}}, title = {{{Electrically Detected Electron-Spin-Echo Envelope Modulation: A Highly Sensitive Technique for Resolving Complex Interface Structures}}}, doi = {{10.1103/physrevlett.106.196101}}, volume = {{106}}, year = {{2011}}, } @article{13567, author = {{Konopka, A. and Greulich-Weber, S. and Dierolf, V. and Jiang, H.X. and Gerstmann, Uwe and Rauls, E. and Sanna, S. and Schmidt, Wolf Gero}}, issn = {{0925-3467}}, journal = {{Optical Materials}}, pages = {{1041--1044}}, title = {{{Microscopic structure and energy transfer of vacancy-related defect pairs with Erbium in wide-gap semiconductors}}}, doi = {{10.1016/j.optmat.2010.12.005}}, volume = {{33}}, year = {{2011}}, } @article{13568, author = {{Mietze, C. and Landmann, M. and Rauls, E. and Machhadani, H. and Sakr, S. and Tchernycheva, M. and Julien, F. H. and Schmidt, Wolf Gero and Lischka, K. and As, Donat Josef}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{19}}, title = {{{Band offsets in cubic GaN/AlN superlattices}}}, doi = {{10.1103/physrevb.83.195301}}, volume = {{83}}, year = {{2011}}, } @article{13569, author = {{Favero, P.P. and Ferraz, A.C. and Schmidt, Wolf Gero and Miotto, R.}}, issn = {{0039-6028}}, journal = {{Surface Science}}, pages = {{824--830}}, title = {{{Driving forces for the adsorption of cyclopentene on InP(001)}}}, doi = {{10.1016/j.susc.2011.01.027}}, volume = {{605}}, year = {{2011}}, } @article{13570, author = {{Müllegger, S. and Rashidi, M. and Lengauer, T. and Rauls, E. and Schmidt, Wolf Gero and Knör, G. and Schöfberger, W. and Koch, R.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{16}}, title = {{{Asymmetric saddling of single porphyrin molecules on Au(111)}}}, doi = {{10.1103/physrevb.83.165416}}, volume = {{83}}, year = {{2011}}, } @article{13571, author = {{Thierfelder, C. and Witte, M. and Blankenburg, S. and Rauls, E. and Schmidt, Wolf Gero}}, issn = {{0039-6028}}, journal = {{Surface Science}}, pages = {{746--749}}, title = {{{Methane adsorption on graphene from first principles including dispersion interaction}}}, doi = {{10.1016/j.susc.2011.01.012}}, volume = {{605}}, year = {{2011}}, } @inproceedings{13588, author = {{Kotlowski, W. and Dembczynski, K. and Hüllermeier, Eyke}}, booktitle = {{in Proceedings ICML-2011, 28th International Conference on Machine Learning, Washington, USA}}, title = {{{Bipartite ranking through minimization of univariate loss}}}, year = {{2011}}, } @inproceedings{13643, author = {{Agne, Andreas and Platzner, Marco and Lübbers, Enno}}, booktitle = {{Proceedings of the International Conference on Field Programmable Logic and Applications (FPL)}}, isbn = {{9781457714849}}, pages = {{185--188}}, publisher = {{IEEE}}, title = {{{Memory Virtualization for Multithreaded Reconfigurable Hardware}}}, doi = {{10.1109/fpl.2011.42}}, year = {{2011}}, } @inproceedings{13644, author = {{Henkel, Jörg and Hedrich, Lars and Herkersdorf, Andreas and Kapitza, Rüdiger and Lohmann, Daniel and Marwedel, Peter and Platzner, Marco and Rosenstiel, Wolfgang and Schlichtmann, Ulf and Spinczyk, Olaf and Tahoori, Mehdi and Bauer, Lars and Teich, Jürgen and Wehn, Norbert and Wunderlich, Hans-Joachim and Becker, Joachim and Bringmann, Oliver and Brinkschulte, Uwe and Chakraborty, Samarjit and Engel, Michael and Ernst, Rolf and Härtig, Hermann}}, booktitle = {{Proceedings of the seventh IEEE/ACM/IFIP International Conference on Hardware/software Codesign and system synthesis - CODES+ISSS '11}}, isbn = {{9781450307154}}, title = {{{Design and architectures for dependable embedded systems}}}, doi = {{10.1145/2039370.2039384}}, year = {{2011}}, } @article{1376, author = {{Dannewitz, Christian and Biermann, Thorsten and Dräxler, Martin and Karl, Holger}}, issn = {{1798-2340}}, journal = {{Journal of Advances in Information Technology}}, number = {{1}}, publisher = {{Engineering and Technology Publishing}}, title = {{{Complex Queries in P2P Networks with Resource-Constrained Devices}}}, doi = {{10.4304/jait.2.1.2-14}}, volume = {{2}}, year = {{2011}}, } @article{13823, author = {{Sanna, S. and Berth, G. and Hahn, W. and Widhalm, A. and Zrenner, A. and Schmidt, Wolf Gero}}, issn = {{0885-3010}}, journal = {{IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control}}, number = {{9}}, pages = {{1751--1756}}, title = {{{Vibrational properties of the LiNbO3 z-surfaces}}}, doi = {{10.1109/tuffc.2011.2012}}, volume = {{58}}, year = {{2011}}, } @article{13824, author = {{Zirkelbach, F. and Stritzker, B. and Nordlund, K. and Lindner, J. K. N. and Schmidt, Wolf Gero and Rauls, E.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{6}}, title = {{{Combined ab initio and classical potential simulation study on silicon carbide precipitation in silicon}}}, doi = {{10.1103/physrevb.84.064126}}, volume = {{84}}, year = {{2011}}, } @article{13825, author = {{Sanna, S. and Thierfelder, C. and Wippermann, S. and Sinha, T. P. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{5}}, title = {{{Barium titanate ground- and excited-state properties from first-principles calculations}}}, doi = {{10.1103/physrevb.83.054112}}, volume = {{83}}, year = {{2011}}, } @inproceedings{29967, abstract = {{Die Kommunikations- und Informationstechnik eröffnet neue Möglichkeiten zur Erweiterung und Optimierung der Systemfunktionalität mechatronischer Systeme. Die erfolgreiche Entwicklung dieser fortgeschrittenen mechatronischen Systeme bedarf sowohl einer besonderen Strukturierung der Informationsverarbeitung als auch einer geeigneten modellbasierten Entwurfstechnik. SysML und CONSENS eignen sich für den Entwurf derartiger Systeme. Die Anwendung von CONSENS wird anhand eines Demonstrators vertieft.}}, author = {{Gausemeier, Jürgen and Dumitrescu, Roman and Tschirner, Christian and Stille, Karl Stephan Christian}}, booktitle = {{Tag des Systems Engineering}}, keywords = {{Produktentstehung, HES, Hybrider Energiespeicher, CONSENS, SysML, SFB614, LEA-Publikation, Eigene}}, title = {{{Modellbasierte Konzipierung eines hybriden Energiespeichersystems für ein autonomes Schienenfahrzeug}}}, year = {{2011}}, } @misc{30172, pages = {{323 -- 348}}, title = {{{Aus dem Deutschen ins Italienische: U. Dirk und A. Wagner, Filosofia dell’interpretazione. Principi, sviluppi, caratteristiche}}}, volume = {{33}}, year = {{2011}}, } @misc{30171, pages = {{181 -- 201}}, title = {{{Aus dem Deutschen ins Italienische: G. Abel, Il rapporto interno tra linguaggio, comunicazione, mondo della vita e scienza}}}, year = {{2011}}, } @misc{30161, author = {{Ficara, Elena}}, booktitle = {{Hegel-Studien}}, pages = {{193 --196}}, title = {{{Adorno, T. W., Einführung in die Dialektik, Frankfurt a.M. 2010}}}, volume = {{46}}, year = {{2011}}, } @article{30146, author = {{Ficara, Elena}}, journal = {{Rivista di storia della filosofia}}, pages = {{164 -- 167}}, title = {{{Skeptizismus und Philosophie. Kant, Fichte, Hegel}}}, volume = {{1}}, year = {{2011}}, } @inbook{30128, author = {{Ficara, Elena}}, booktitle = {{Hegel Jahrbuch }}, pages = {{400 -- 405}}, publisher = {{Akademie Verlag }}, title = {{{Metaphysik in der zeitgenössischen Hegelrezeption}}}, year = {{2011}}, } @book{30077, editor = {{Ficara, Elena}}, publisher = {{Königshausen & Neumann }}, title = {{{Die Begründung der Philosophie im Deutschen Idealismus}}}, year = {{2011}}, } @article{29609, author = {{Wallscheid, Oliver and Peters, Wilhelm and Böcker, Joachim}}, journal = {{Aktuelle Technik}}, number = {{1}}, pages = {{30–33}}, publisher = {{Schweiz, B+ L Verlags AG}}, title = {{{Optimierte Regelung für mobile Elektromotoren}}}, volume = {{5}}, year = {{2011}}, } @inproceedings{29601, author = {{Peters, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{IECON 2011-37th Annual Conference of the IEEE Industrial Electronics Society}}, pages = {{534–538}}, title = {{{Current controller with defined dynamic behavior for an interior permanent magnet synchronous motor}}}, year = {{2011}}, } @article{3076, author = {{Schmitz, Hendrik and Wübker, Ansgar}}, journal = {{Health Economics}}, number = {{11}}, pages = {{1281--1297}}, title = {{{What determines influenza vaccination take-up of elderly Europeans?}}}, doi = {{10.1002/hec.1672}}, volume = {{20}}, year = {{2011}}, } @article{3077, author = {{Schmitz, Hendrik}}, journal = {{Economics Letters}}, number = {{2}}, pages = {{180--182}}, title = {{{Direct evidence of risk aversion as a source of advantageous selection in health insurance}}}, doi = {{10.1016/j.econlet.2011.06.016}}, volume = {{113}}, year = {{2011}}, } @article{3078, author = {{Schmitz, Hendrik}}, journal = {{Labour Economics}}, number = {{1}}, pages = {{71--78}}, title = {{{Why are the unemployed in worse health? The causal effect of unemployment on health}}}, doi = {{10.1016/j.labeco.2010.08.005}}, volume = {{18}}, year = {{2011}}, } @article{3079, author = {{Herr, Annika and Schmitz, Hendrik and Augurzky, Boris}}, journal = {{Health Economics}}, number = {{6}}, pages = {{660----674}}, title = {{{Profit efficiency and ownership of German hospitals}}}, doi = {{10.1002/hec.1622 }}, volume = {{20}}, year = {{2011}}, } @inproceedings{30323, author = {{Grote, Tobias and Figge, Heiko and Fröhleke, Norbert and Böcker, Joachim and Schafmeister, Frank}}, booktitle = {{Proc. IEEE Energy Conversion Congress and Exposition (ECCE)}}, location = {{Phoenix, AZ, USA}}, pages = {{3186 -- 3192}}, publisher = {{IEEE}}, title = {{{Digital Control Strategy for Multi-Phase Interleaved Boundary Mode and DCM Boost PFC Converters}}}, year = {{2011}}, } @inproceedings{30322, author = {{Figge, Heiko and Grote, Tobias and Fröhleke, Norbert and Böcker, Joachim and Schafmeister, Frank}}, booktitle = {{Proc. 26th IEEE Applied Power Electronics Conference (APEC)}}, location = {{Fort Worth, TX, USA}}, pages = {{13 -- 20}}, publisher = {{IEEE}}, title = {{{Overcurrent Protection for the LLC Resonant Converter with Improved Hold-Up Time}}}, year = {{2011}}, } @misc{30354, author = {{Schafmeister, Frank and Kolar, Johann}}, pages = {{10}}, title = {{{Unidirektionaler AC-AC-Matrixkonverter mit Dreipunkt Ein- und Ausgangsstufe}}}, year = {{2011}}, } @misc{30353, author = {{Schafmeister, Frank and Kolar, Johann}}, pages = {{11}}, title = {{{Verfahren zum spannungslosen Schalten der Pulswechselrichter-Ausgangsstufe eines indirekten Dreiphasen-AC-AC Matrixkonverters}}}, year = {{2011}}, } @inproceedings{30534, author = {{Lv, J. and Cao, Z. and Fröhleke, N. and Böcker, Joachim and Yuan, H. and Mi, H.}}, booktitle = {{Proceedings of the 2011 14th European Conference on Power Electronics and Applications}}, title = {{{Thermal-electrical modeling and simulation of resonantly operated DC-DC converters based on extended describing function method}}}, year = {{2011}}, } @inproceedings{30535, author = {{Peters, W. and Huber, T. and Böcker, Joachim}}, booktitle = {{PCIM 2011, Nürnberg, Deutschland}}, title = {{{Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains}}}, year = {{2011}}, } @inproceedings{17615, author = {{Peckhaus, Volker}}, booktitle = {{Leonard Nelson – ein früher Denker der Analytischen Philosophie. Ein Symposium zum 80. Todestag des Göttinger Philosophen}}, editor = {{Berger, Armin and Raupach-Strey, Gisela and Schroth, Jörg}}, pages = {{193--211}}, publisher = {{LIT}}, title = {{{Logik und Mathematik in der Philosophie Leonard Nelsons}}}, volume = {{2}}, year = {{2011}}, } @inproceedings{17612, abstract = {{Rezension: Zbl. Math. 1223.01014 (J. Mackenzie).}}, author = {{Peckhaus, Volker}}, booktitle = {{Hermann Graßmann. From Past to Future: Graßmann’s Work in Context. Graßmann Bicentennial Conference, September 2009}}, editor = {{Petsche, Hans-Joachim and a., u.}}, pages = {{221--228}}, publisher = {{Birkhäuser}}, title = {{{Robert and Hermann Grassmann’s Influence on the History of Formal Logic}}}, year = {{2011}}, } @inbook{17613, author = {{Peckhaus, Volker}}, booktitle = {{Departure for Modern Europe. A Handbook of Early Modern Philosophy (1400–1700)}}, editor = {{Busche, Hubertus}}, pages = {{908--917}}, publisher = {{Felix Meiner Verlag}}, title = {{{Leibniz’ Logik und die sprachliche Erschließung der Welt in der Moderne}}}, year = {{2011}}, } @article{17614, author = {{Peckhaus, Volker and Wahrig, Bettina}}, journal = {{Berichte zur Wissenschaftsgeschichte}}, pages = {{99--101}}, title = {{{Einleitung: Räume zwischen Materialisierung und Idealisierung}}}, volume = {{34}}, year = {{2011}}, } @inproceedings{30532, author = {{Hu, M. and Böcker, Joachim and Fröhleke, N.}}, booktitle = {{EPE2011, Birmingham, UK}}, title = {{{Frequency / duty cycle current-mode fuzzy control for LCC resonant converter}}}, year = {{2011}}, } @inproceedings{30798, abstract = {{We apply a network model of lexical alignment, called Two-Level Time-Aligned Network Series, to natural route direction dialogue data. The model accounts for the structural similarity of interlocutors’ dialogue lexica. As classification criterion the directions are divided into effective and ineffective ones. We found that effective direction dialogues can be separated from ineffective ones with a hit ratio of 96% with regard to the structure of the corresponding dialogue lexica. This value is achieved when taking into account just nouns. This hit ratio decreases slightly as soon as other parts of speech are also considered. Thus, this paper provides a machine learning framework for telling apart effective dialogues from insufficient ones. It also implements first steps in more fine-grained alignment studies: we found a difference in the efficiency contribution between (the interaction of) lemmata of different parts of speech.}}, author = {{Mehler, Alexander and Lücking, Andy and Menke, Peter}}, booktitle = {{Proceedings of 12th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing)}}, publisher = {{Springer}}, title = {{{Mod­el­ling Lex­i­cal Align­ment in Spon­ta­neous Direc­tion Dia­logue Data by Means of a Lex­i­con Net­work Model}}}, year = {{2011}}, } @inproceedings{30802, abstract = {{We introduce the multimodal Bielefeld Speech and Gesture Alignment (SaGA) corpus, its design, structure, and approaches to a data-driven development and validation of a gesture typology.}}, author = {{Hahn, Florian and Menke, Peter}}, booktitle = {{Online Proceedings of the Corpus Linguistics 2011 Conference, Birmingham (UK)}}, title = {{{Corpus-driven development of a Gesture Typology based on the Bielefeld Speech and Gesture Alignment Corpus}}}, year = {{2011}}, } @inproceedings{30800, author = {{Lücking, Andy and Abramov, Olga and Mehler, Alexander and Menke, Peter}}, booktitle = {{Online Proceedings of the Corpus Linguistics 2011 Conference, Birmingham (UK)}}, title = {{{The Bielefeld Jigsaw Map Game (JMG) Corpus}}}, year = {{2011}}, } @inproceedings{30801, author = {{Mehler, Alexander and Lücking, Andy and Menke, Peter}}, booktitle = {{Proceedings of the International Joint Conference on Neural Networks (IJCNN 2011)}}, title = {{{From Neural Activation to Symbolic Alignment: A Network-Based Approach to the Formation of Dialogue Lexica}}}, year = {{2011}}, } @inproceedings{30799, author = {{Menke, Peter and Mehler, Alexander}}, booktitle = {{Online Proceedings of the Corpus Linguistics 2011 Conference, Birmingham (UK)}}, title = {{{From Experiments to Corpora: The Ariadne Corpus Management System}}}, year = {{2011}}, } @article{16000, author = {{Marten, Thorsten and Niewel, J. and Tröster, Thomas}}, issn = {{1867-2493}}, journal = {{HTM Journal of Heat Treatment and Materials}}, pages = {{309--315}}, title = {{{Untersuchung alternativer Erwärmungsverfahren für den Presshärteprozess}}}, doi = {{10.3139/105.110119}}, year = {{2011}}, } @misc{17805, author = {{Peckhaus, Volker}}, booktitle = {{Berichte zur Wissenschaftsgeschichte}}, pages = {{385--387}}, title = {{{Volker Remmert/Ute Schneider, Eine Disziplin und ihre Verleger. Disziplinenkultur und Publikationswesen der Mathematik in Deutschland, 1871–1949. Bielefeld: transcript Verlag 2010}}}, volume = {{34}}, year = {{2011}}, } @inproceedings{22029, abstract = {{In this work the influence of the orientation and the toolpath generation of manufactured parts based on the mechanical data are analyzed. Tensile Specimen are generated with the given parameters as well as with changing parameters of the native software based upon the CAD data. The parts then are built up with the “Fortus 400mc” from Stratasys. First tensile tests show different strength and strain characteristics that depend on the given structure and as a result of the build direction. The influence of the parameters was analyzed with a statistic test method by using the software Design Expert.}}, author = {{Bagsik, A. and Schöppner, Volker}}, booktitle = {{ANTEC}}, pages = {{1294--1298}}, title = {{{Mechanical Properties of Fused Deposition Modeling Parts Manufactured with ULTEM*9085}}}, doi = {{https://www.researchgate.net/profile/Volker_Schoeppner/publication/284341800_Mechanical_properties_of_fused_deposition_modeling_parts_manufactured_with_ULTEMzast9085/links/5c73971b458515831f6cd501/Mechanical-properties-of-fused-deposition-modeling-parts-manufactured-with-ULTEM-zast9085.pdf}}, year = {{2011}}, } @phdthesis{30539, author = {{Mathapati, S.}}, title = {{{FPGA-Based High Performance AC Drive}}}, year = {{2011}}, } @inbook{30873, author = {{Lammer, Christina}}, booktitle = {{The Evil Body}}, pages = {{15–24}}, publisher = {{Brill}}, title = {{{A Smelly Body, The Fear of the Unclean Feminine Body: A Cultural Analysis of the Debate on Perversion in Charlotte Roche’s Feuchtgebiete}}}, year = {{2011}}, } @article{31835, author = {{Ballweg, Sandra and Bräuer, Gerd}}, journal = {{Fremdsprache Deutsch 45/2}}, pages = {{3--11}}, title = {{{Portfolioarbeit im Fremdsprachenunterricht – Yes, we can! }}}, year = {{2011}}, } @inbook{31839, author = {{Ballweg, Sandra and Scholz, Nadine and Richter, Kristina and Bruder, Regina}}, booktitle = {{Schreibarrangements in Schule, Studium, Beruf}}, editor = {{Bräuer, Gerd and Schindler, Kirsten}}, pages = {{188--204}}, publisher = {{Fillibach}}, title = {{{Schreibend lehren lernen – unterstützt durch ein digitales Kompetenzportfolio für Lehramtsstudierende (dikopost)}}}, year = {{2011}}, } @inbook{31837, author = {{Ballweg, Sandra}}, booktitle = {{Sprachlernberatung für DaF}}, editor = {{Vogler, Stefanie and Hoffmann, Sabine}}, pages = {{123--136}}, publisher = {{Frank & Timme}}, title = {{{Schreibberatung für internationale Studierende}}}, year = {{2011}}, } @article{31838, author = {{Ballweg, Sandra}}, journal = {{Deutsche Lehrer im Ausland 1}}, pages = {{63--68}}, title = {{{Das Europäische Sprachenportfolio im Kontext des Rahmenplans Deutsch als Fremdsprache}}}, year = {{2011}}, } @article{31836, author = {{Ballweg, Sandra}}, journal = {{Fremdsprache Deutsch 45/2}}, pages = {{36--40}}, title = {{{Portfolioarbeit im Praxistext – Zeitverschwendung oder Wunderinstrument?}}}, year = {{2011}}, } @inbook{31874, author = {{Lück, Sonja}}, booktitle = {{Herausforderung Internationalisierung}}, editor = {{Leszczensky, Micheal and Barthelmes, Tanja}}, isbn = {{ 978-3-930447-93-0}}, pages = {{79--87}}, title = {{{Internationale Publikationen und gute Lehre? Eine Panel-Daten-Analyse wirtschaftswissenschaftlicher Bachelor- und Mastermodule.}}}, year = {{2011}}, } @book{32051, author = {{Niederhaus, Constanze}}, publisher = {{Waxmann Verlag}}, title = {{{Fachsprachlichkeit in Lehrbüchern. Korpuslinguistische Analysen von Fachtexten der beruflichen Bildung}}}, year = {{2011}}, } @misc{32113, author = {{Niederhaus, Constanze}}, publisher = {{Universität Duisburg-Essen}}, title = {{{Zur Förderung des Verstehens logischer Bilder in mehrsprachigen Lernergruppen; Essen ProDAZ. Deutsch als Zweitsprache in allen Fächern}}}, year = {{2011}}, } @inbook{32116, author = {{Niederhaus, Constanze}}, booktitle = {{Lernprozesse in Alphabetisierung und Grundbildung Erwachsener. Diagnostik, Vermittlung, Professionalisierung}}, pages = {{185--204}}, publisher = {{Bertelsmann}}, title = {{{„Oh Gott, was ist denn das hier alles?“ Evaluation von Lehr- und Lernmaterialien im Bereich der arbeitsplatzorientierten Grundbildung - eine Diskussion methodischer Vorgehensweisen}}}, year = {{2011}}, } @inbook{32114, author = {{Niederhaus, Constanze}}, booktitle = {{bwp@ Berufs- und Wirtschaftspädagogik - online, Ausgabe bwp@ Spezial 5 - HT2011}}, title = {{{Informierende Bilder in Fachkundebüchern: berufsfeldabhängige Variation und didaktische Konsequenzen}}}, year = {{2011}}, } @misc{32126, author = {{Badel, Steffi and Niederhaus, Constanze}}, publisher = {{Humboldt-Universität zu Berlin}}, title = {{{AlphaZ Evaluation. Abschlussbericht AlphaZ Evaluation}}}, year = {{2011}}, } @misc{32127, author = {{Badel, Steffi and Niederhaus, Constanze}}, publisher = {{Humboldt-Universität zu Berlin}}, title = {{{AlphaZ Evaluation. Sachbericht 2010}}}, year = {{2011}}, } @misc{18685, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Frege, Gottlob, "Grundgesetze der Arithmetik. Begriffsschriftlich abgeleitet. Band I und II. In moderne Formelnotation transkribiert und mit einem ausführlichen Sachregister versehen von Thomas Müller, Bernhard Schröder und Rainer Stuhlmann-Laeisz", Mentis: Paderborn 2009}}}, year = {{2011}}, } @misc{18698, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Künne, Wolfgang, "Die Philosophische Logik Gottlob Freges. Ein Kommentar. Mit den Texten des Vorwortes zu Grundgesetze der Arithmetik und der Logischen Untersuchungen I–IV", Klostermann: Frankfurt a.M. 2010 (Klostermann Rote Reihe; 30)}}}, year = {{2011}}, } @misc{18683, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete }}, title = {{{"Logik in der Philosophie", hg. v. Wolfgang Spohn/Peter Schroeder-Heister/Erik J. Olsson, Synchron: Heidelberg 2005 (Philosophische Impulse; 6)}}}, year = {{2011}}, } @misc{18684, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Arai, Toshiyasu, “Progress in the Proof Theory Related to Hilbert’s Second Problem”, In: Sugaku Expositions 57 (2008), 83–96}}}, year = {{2011}}, } @misc{18682, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Cerroni, Cinzia, “Some Models of Geometries after Hilbert’s Grundlagen”, In: Rendiconti di Matematica (VII) 39 (2010), 47–66}}}, year = {{2011}}, } @misc{18699, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Hausdorf, Felix, "Gesammelte Werke, Bd. VIII: Literarisches Werk", hg. v. Friedrich Vollhardt und Udo Roth, Springer: Berlin/Heidelberg 2010}}}, year = {{2011}}, } @book{32190, author = {{Ptashnyk, Stefaniya}}, pages = {{123–124}}, title = {{{Deutsch als Fremdsprache. Zeitschrift zur Theorie und Praxis des Deutschunterrichts für Ausländer (Heft 2/ Rezensiert von Piirainen, Elisabeth)}}}, year = {{2011}}, } @inbook{32216, author = {{Ptashnyk, Stefaniya}}, booktitle = {{Große Lexika und Wörterbücher Europas: Europäische Enzyklopädien und Wörter-bücher in historischen Porträts (Handbuchartikel)}}, editor = {{Haß , Ulrike }}, pages = {{351–366}}, publisher = {{de Gruyte}}, title = {{{Das Wörterbuch der ukrainischen Sprache von Borys Hrinčenko}}}, year = {{2011}}, } @inbook{32217, author = {{Ptashnyk, Stefaniya}}, booktitle = {{Große Lexika und Wörterbücher Europas: Europäische Enzyklopädien und Wörter-bücher in historischen Porträts (Handbucharti-kel)}}, editor = {{Haß , Ulrike }}, pages = {{433–448.}}, publisher = {{de Gruyte}}, title = {{{Enzyklopädie der Ukrainekunde. Hg. von Volodymyr Kubijovyč}}}, year = {{2011}}, }