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Heckel, R. (1999). Modeling Agent-Based Systems with Graph Transformation and UML. In Proceedings of the Dagstuhl-Seminar 99451 on Rigorous Analysis and Design for Software Intensive Systems.
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Sauer, S., &; Engels, G. (1999). Extending UML for Modeling of Multimedia Applications. In Proceedings of the IEEE Symposium on Visual Languages (VL 1999), Tokyo (Japan) (pp. 80–87). Tokyo, Japan: IEEE Computer Society.http://doi.ieeecomputersociety.org/10.1109/VL.1999.795878 
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Salhi, M. J., Krauter, S., Lemoine, R., Triebel, C., Schroer, S., &; Araújo, R. G. (1999). Combined Photovoltaic and Solar Thermal Systems for Facade Integration and Building Insulation. In Proceedings of the ISES Solar World Congress, Jerusalem (Israel), .4.–9. Juli 1999, II-88.
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Krauter, S., Stephan, R., &; Bastos, L. (1999). Set-up of a Laboratory for Research and Education in Solar Energy in Rio de Janeiro. In Proceedings of the ISES Solar World Congress, Jerusalem (Israel), 4.–9. Juli 1999, S. II-288.
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Krauter, S., &; Schmid, U. (1999). Cooling and Less Reflections at Photovoltaic Modules by a Frontside Water Film. In Proceedings of the ISES Solar World Congress, Jerusalem (Israel), 4.–9. Juli 1999,.
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Krauter, S. (1999). The Use of Solar Energy: Considerations for Calculations of Greenhouse Gas Reduction by Photovoltaics. In Proceedings of the ISES Solar World Congress, Jerusalem (Israel), 4.–9. Juli 1999, II-375.
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Krauter, S., &; Schmid, U. (1999). Optical and Thermal Improvements of PV Performance by a Flowing Film of Water at the Frontside of PV Generators. . In Proceedings of the 9th Sede Boquer Symposium on Solar Electricity Production, Sede Boquer (Israel), 12.–13. Juli 1999, S. 123–126.
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Krauter, S. (1999). Híbridos Termo/Solares Fotovoltaicos (Combined Solar–Thermal/Photovoltaic Systems). In Proceedings of Workshop Energias Alternativas para Produção de Calor, Frio e Geração e Conservação de Energia Elétrica, UFSC, Florianópolis, Santa Catarina (Brasilien), 6.–9. Dezember 1999.
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Krauter, S., Araujo, G., Schroer, S., Salhi, M., Triebel, C., &; Hanitsch, R. (1999). Combined PV and Solar Thermal Systems for Facade Integration and Building Insulation. Solar Energy, 67(4–6), 239–248.
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Ehrig, H., Heckel, R., Llabrés, M., &; Orejas, F. (1999). Basic Properties of Double Pullback Graph Transitions. Technical University of Berlin.
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Engels, G., Hücking, R., Sauer, S., &; Wagner, A. (1999). UML Collaboration Diagrams and Their Transformation to Java. University of Paderborn, Department of Computer Science.
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Engels, G., Jan t’Hoen, P., Dassen, R., Groenewegen, L., G. Sprinkhuizen-Kuyper, I., &; Koopman, P. (1999). SOCCA Extended with UML like Packages (pp. 99–06). Leiden Institute of Advanced Computer Science.
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Engels, G., Dassen, R., Groenewegen, L., G. Sprinkhuizen-Kuyper, I., Koopman, P., &; Jan t’Hoen, P. (1999). A Formalisation of SOCCA using Z, part 1: The Type Level Concepts. Leiden Institute of Advanced Computer Science.
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Sauer, S., &; Engels, G. (1999). UML-basierte Modellierung von Multimediaanwendungen. In Modellierung 1999, Workshop der Gesellschaft für Informatik e. V. (GI), März 1999 in Karlsruhe (pp. 155–170). Karlsruhe, Germany: Teubner, Stuttgart.
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Sauer, S., &; Engels, G. (1999). OMMMA: An Object-Oriented Approach for Modeling Multimedia Information Systems. In Proceedings of the workshop on Multimedia Information Systems (MIS 1999), Indian Wells, CA (USA) (pp. 64–71). Indian Wells, California, USA.
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Corradini, A., Große-Rhode, M., &; Heckel, R. (1999). An Algebra of Graph Derivations using Finite (co-) limit Double Theories. In Selected papers of the 13th International Workshop on Recent Trends in Algebraic Development Techniques (WADT 1998), Lisbon (Portugal) (Vol. 1589, pp. 92–106). Berlin/Heidelberg: Springer.http://dx.doi.org/10.1007/3-540-48483-3_7 
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Corradini, A., Heckel, R., &; Montanari, U. (1999). From SOS Specifications to Structured Coalgebras: How to Make Bisimulation a Congruence. In Proceedings of the 2nd workshop on Coalgebraic Methods in Computer Science (CMCS 99) (Vol. 19, pp. 118–141). Amsterdam, The Netherlands: Elsevier.http://dx.doi.org/10.1016/S1571-0661(05)80273-7 
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Engels, G., Heckel, R., &; Sauer, S. (1999). Dynamic Meta Modelling: A Graphical Approach to Operational Semantics. In Proceedings of the workshop on Rigorous Modeling and Analysis with the UML: Challenges and Limitations (satellite event of the Conference on Onject-Oriented Programming, Systems, Languages, and Applications (OOPSLA 1999)), Denver, CO (USA).
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Engels, G., &; Sauer, S. (1999). MVC-Based Modeling Support for Embedded Real-Time Systems. In Proceedings of OMER Workshop, Herrsching, Germany (pp. 11–14). Herrsching, Universität der Bundeswehr München, Fakultät für Informatik.
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Mehner, K., &; Wagner, A. (1999). An Assessment of Aspect Language Design. In Proceedings of the Young Researchers Workshop (satellite event of the Generative and Component-Based Software Engineering (GCSE 1999)), Erfurt (Germany).
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Mehner, K., &; Wagner, A. (1999). On the Role of Method Families in Aspect Oriented Programming. In Proceedings of the ECOOP Workshop on Aspect Oriented Programming, Lisboa (Spain) (Vol. 1743, pp. 305–306). Berlin/Heidelberg: Springer.
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Hanel, U., Kabst, R., Mayrhofer, W., &; Weber, W. (1999). Personalmanagement in Europa - Ein Vergleich auf der Basis empirischer Daten (Vol. 51(1), pp. 32–36).
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Kabst, R., &; Weber, W. (1999). Die Bedeutung betrieblicher Informationskanäle: Eine Analyse vor dem Hintergrund aktueller personalwirtschaftlicher Entwicklungen. In T. Breisig (Ed.), Mitbestimmung: Gesellschaftlicher Auftrag und ökonomische Ressource (pp. 407–425). München/Mering.
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Feng, Y. (1999). Kernel- and Locally Weighted Regression -- with Application to Time Series Decomposition.
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Frick, B., &; Schneider, M. (1999). Zunehmende Konfliktregulierung durch Arbeitsgerichte? Eine ökonomische Analyse der Häufigkeit von Kündigungsschutzprozessen.
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Eggert, A. (1999). Kundenbindung aus Kundensicht: Konzeptualisierung, Optionalisierung, Verhaltenswirksamkeit. Wiesbaden: Deutscher Universitätsverlag.https://doi.org/10.1007/978-3-663-08677-2 
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Kremer, H.-H. (1999). Implementation fächer- und lernortübergreifender Ausbildungskonzepte im Alltag dualer Ausbildung. Konzepte und Erfahrungen. In H.-H. Kremer, A. Ostendorf, &; P. F. E. Sloane (Eds.), Lehren und Lernen in Schule und Betrieb  (Vol. 1). Markt Schwaben.
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Depke, R., Engels, G., Mehner, K., Sauer, S., &; Wagner, A. (1999). Ein Vorgehensmodell für die Multimedia-Entwicklung mit Autorensystemen. Informatik Forschung Und Entwicklung, 14(2), 83–94.http://dx.doi.org/10.1007/s004500050128 
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Cherchago, A., &; Finaev, V. (1999). Formalization of the development process for a software-hardware reflexodiagnostic tool. Scientific Bulletin of Academy of Information Technologies in Education, Science and Balneology, 3.
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Andries, M., Engels, G., Habel, A., Hoffmann, B., Kreowski, H.-J., Kuske, S.,http://dx.doi.org/10.1016/S0167-6423(98)00023-9__Taentzer, G. (1999). Graph Transformation for Specification and Programming. Science of Computer Programming, 34(1), 1–54.http://dx.doi.org/10.1016/S0167-6423(98)00023-9 
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Ehrig, H., Engels, G., Kreowski, H. J., &; Rozenberg, G. (1999). Handbook of Graph Grammars and Computing by Graph Transformation: Vol. 2: Applications, Languages, and Tools. River Edge, NJ, USA: World Scientific Publishing Co., Inc.
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Heckel, R., Engels, G., Ehrig, H., &; Taentzer, G. (1999). A View-based Approach to System Modeling Based on Open Graph Transformation Systems. In Handbook of Graph Grammars and Computing by Graph Transformations, Volume 2: Applications, Languages and Tools (pp. 639–668). Singapore: World Scientific.
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Heckel, R., Engels, G., Ehrig, H., &; Taentzer, G. (1999). Classification and Comparison of Module Concepts for Graph Transformation Systems. In Handbook of Graph Grammars and Computing by Graph Transformations, Volume 2: Applications, Languages and Tools (Vol. 2, pp. 669–689). Singapore: World Scientific.
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Eggert, A. (Ed.). (1999). Kundenbindung aus Kundensicht: Konzeptualisierung, Operationalisierung, Verhaltenswirksamkeit. Wiesbaden: Gabler.
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Eshlaghi, S., Meier, C., Suter, D., Reuter, D., &; Wieck, A. D. (1999). Depth profile of the implantation-enhanced intermixing of Ga+ focused ion beam in AlAs/GaAs quantum wells. Journal of Applied Physics, 86(11), 6605–6607.https://doi.org/10.1063/1.371720 
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Kremer, H.-H. (1999). Realisierung fächer- und lernortübergreifender Ausbildungskonzepte. In P. F. E. Sloane, R. Bader, &; G. Straka (Eds.), Lehren und Lernen in der Aus- und Weiterbildung. Opladen.
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Kremer, H.-H., &; Sloane, P. F. E. (1999). Lernfelder - Motor didaktischer Innovationen. Kölner Zeitschrift für Wirtschaft und Pädagogik, (26), 37–60.
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Kremer, H.-H. (1999). Can students act? Explorative Studie zum Erfolg fächer- und lernortübergreifender Maßnahmen. Kölner Zeitschrift für Wirtschaft und Pädagogik, (27), 93–110.
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Kremer, H.-H., &; Wilbers, K. (1999). Das virtuelle Seminar “Wirtschaftspädagogik Köln-München.” In Bertelsmann Stiftung (Ed.), Virtus, virtuelle Universitätssysteme Köln: Jahresbericht 1998/1999 (pp. 93–99). Gütersloh.
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Kremer, H.-H., &; Sloane, P. F. E. (1999). Der implizite Lerner in multimedialen Lernarrangements. Kölner Zeitschrift für Wirtschaft und Pädagogik, (25), 117–144.
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Karl, H. (1999). Towards Quality of Service for Parallel Computing: An Overview of the MILAN Project. In High-Performance Computing and Networking, 7th International Conference, HPCN Europe 1999, Amsterdam, The Netherlands, April 12-14, 1999, Proceedings (pp. 841--850).https://doi.org/10.1007/BFb0100644 
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Karl, H. (1999). Coscheduling through Synchronized Scheduling Servers -- A Prototype and Experiments. In Parallel and Distributed Processing, 11 IPPS/SPDP’99 Workshops Held in Conjunction with the 13th International Parallel Processing Symposium and 10th Symposium on Parallel and Distributed Processing, San Juan, Puerto Rico, USA, April 12-16, 1999, Proceedings (pp. 1115--1129).https://doi.org/10.1007/BFb0097997 
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Popp, K., &; Sextro, W. (1999). Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz. In Forschungsvereinigung Verbrennungskraftmaschinen (FW) -lnformationstagung Turbinen (pp. 21–38). Heidelberg.
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Sextro, W. (1999). Experimental verification of a non-Hertzian contact model. In International conference on computational methods in contact mechanics (pp. 181–190).
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Sextro, W. (1999). Forced Vibration of Elastic Structures with Friction Contacts. In ASME Design Engineering Technical Conferences (pp. 1–10). Las Vegas, Nevada, USA.
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Sextro, W., &; Popp, K. (1999). Schwingungsanalyse von vorgespannten Schaufeln mit Deckplatten im Schaufelkranz. In Forschungsvereinigung Verbrennungskraftmaschinen (FW) (p. 56). Frankfurt am Main, Germany.
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Festing, M., Groening, Y., &; Kabst, R. (1999). Financial Participation in Europe: Determinants and Outcomes. Economic and Industrial Democracy., 20(2), 295–329.
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Bendfeld, J., Bettenwort, G., Ortjohann, E., &; Voss, J. (1999). Layout for a wind-power-driven, reverse osmosis installation for desalting brackish water in operation on an island. In Proceedings of the 1999 European Wind Energy Conference, 1-5 March 1999 Nice, France, -978.
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Tönnies, M., &; Viol, C.-U. (Eds.). (1999). Hanif Kureishi. My Beautiful Laundrette. Stuttgart: Reclam.
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Frisch, A. M., Schmidt, W. G., Bernholc, J., Pristovsek, M., Esser, N., &; Richter, W. (1999). (2×4)GaP(001) surface: Atomic structure and optical anisotropy. Physical Review B, 60(4), 2488–2494.https://doi.org/10.1103/physrevb.60.2488 
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DOI: 10.1103/physrevb.60.2488

Schmidt, W. G., Briggs, E. L., Bernholc, J., &; Bechstedt, F. (1999). Structural fingerprints in the reflectance anisotropy spectra ofInP(001)(2×4)surfaces. Physical Review B, 59(3), 2234–2239.https://doi.org/10.1103/physrevb.59.2234 
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DOI: 10.1103/physrevb.59.2234

Peckhaus, V., &; Thiel, C. (Eds.). (1999). Disziplinen im Kontext. Perspektiven der Disziplingeschichtsschreibung. Fink-Verlag.
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Ide, P., Froehleke, N., Grotstollen, H., Korb, W., &; Margaritis, B. (1999). Operation of a three-phase/three-level-rectifier in wide range and single-phase applications. IECON’99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.999).https://doi.org/10.1109/iecon.1999.816448 
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Beineke, S., &; Wertz, H. (1999). Design of extended Kalman filters for high performance position control of electrical drives. 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (Cat. No.99).https://doi.org/10.1109/aim.1999.803168 
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Maas, J., &; Schulte, T. (1999). High performance speed control for ultrasonic motors. 1999 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (Cat. No.99).https://doi.org/10.1109/aim.1999.803148 
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Peckhaus, V. (1999). Abduktion und Heuristik. In J. Nida-Rümelin (Ed.), Rationalität, Realismus, Revision.Vorträge des 3. Internationalen Kongresses der Gesellschaft für Analytische Philosophie (Vol. 23, pp. 833–841). Walter de Gruyter.
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