Hendrik Hausmann, Jan, and Reiko Heckel. “Use Cases as Views: A Formal Approach to Requirements Engineering in the Unified Process.” In Proceedings of the GI/OCG-Jahrestagung on Wirtschaft Und Wissenschaft in Der Network Economy - Visionen Und Wirklichkeit (2001), Wien (Österreich), 1:595–99. Wien (Österreich): Österreichische Computer Gesellschaft, 2001.
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Heckel, Reiko. “Open Petri Nets as Semantic Model for Business Process Integration.” In Proceedings of the 2nd International Colloquium on Petri Net Technologies for Modelling Communication Based Systems, 129–34. DFG Research Group “Petri Net Technology,” 2001.
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Heckel, Reiko, and Stefan Sauer. “Strengthening UML Collaboration Diagrams by State Transformations.”http://dx.doi.org/10.1007/3-540-45314-8_9__In Proceedings of the 4th International Conference on Fundamental Approaches to Software Engineering (FASE 2001), Genova (Italy), 2029:109–23. LNCS. London, UK: Springer, 2001.http://dx.doi.org/10.1007/3-540-45314-8_9 .
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DOI: http://dx.doi.org/10.1007/3-540-45314-8_9

Küster, Jochen. “Towards Behavior Consistent Modeling in UML-RT.” In Proceedings of the Forum on Design Languages (FDL’01). Lyon, France, 2001.
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Sauer, Stefan, and Gregor Engels. “UML-Based Behavior Specification of Interactive Multimedia Applications.”http://dx.doi.org/10.1109/HCC.2001.995271__In Proceedings of the IEEE Symposia on Human Centric Computing Languages and Environments (HCC 2001), Stresa (Italy), 248–55. Washington, DC, USA: IEEE Computer Society, 2001.http://dx.doi.org/10.1109/HCC.2001.995271 .
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DOI: http://dx.doi.org/10.1109/HCC.2001.995271

Heckel, Reiko, and Albert Zündorf. “How to Specify a Graph Transformation Approach - A Meta Model for Fujaba.” In Proceeding of the Workshop on Uniform Approaches to Graphical Process Specifcation Techniques (UNIGRA 2001, Satellite Event of the ETAPS 2001), edited by H. Ehrig and J. Padberg, 44:41–51. Electronic Notes in Theoretical Computer Science. Genova (Italy): Elsevier, 2001.
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Krauter, Stefan. “New Façade System Consisting of Combined Photovoltaic and Solar Thermal Generators with Building Insulation.” In Proceedings of the 7th International Building Performance Simulation Association Conference, Rio de Janeiro (Brasilien), 13.–15. August 2001, S. 619–626, 2001.
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Krauter, Stefan, F. Ochs, and T. Depping. “Satellite Monitoring of Remote PV-Systems.” In Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2598–2599, 2001.
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Ochs, F., and Stefan Krauter. “Development of an All-in-One Solar Home System.” In Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2595–2597, 2001.
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Ochs, F., and Stefan Krauter. “Online Energy Monitoring and Control of a School Building.” In Proceedings of the 18th Conference on Passive and Low Energy Architecture, Florianópolis (Brasilien), 7.–9. November 2001, Band 2, S. 917–919, 2001.
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