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.

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.

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 .

Küster, Jochen. “Towards Behavior Consistent Modeling in UML-RT.” In Proceedings of the Forum on Design Languages (FDL’01). Lyon, France, 2001.

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 .

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.

Engels, Gregor, Jochen Küster, and Luuk Groenewegen. On the Specification and Analysis of Protocols in UML-RT. University of Paderborn, Department of Computer Science, 2001.

Padberg, Julia, Lars Jansen, Hartmut Ehrig, E. Schnieder, and Reiko Heckel. “Cooperability in Train Control Systems: Specification of Scenarios Using Open Nets.” Transactions of the Society for Design and Process Science 5, no. 1 (2001): 3–21.

Heckel, Reiko, Hartmut Ehrig, Uwe Wolter, and Andrea Corradini. “Double Pullback Transitions and Coalgebraic Loose Semantics for Graph Transformation Systems.” Applied Categorical Structures 9, no. 1 (2001): 83–110.

Depke, Ralph, Reiko Heckel, and Jochen Küster. “Roles in Agent-Oriented Modeling.”http://dx.doi.org/10.1142/S0218194001000529__International Journal of Software Engineering and Knowledge Engineering 11, no. 3 (2001): 281–302.http://dx.doi.org/10.1142/S0218194001000529 .

Corradini, Andrea, Martin Große-Rhode, and Reiko Heckel. “A Coalgebraic Presentation of Structured Transition Systems.”http://dx.doi.org/10.1016/S0304-3975(00)00121-3__Theoretical Computer Science 260, no. 1–2 (2001): 27–55.http://dx.doi.org/10.1016/S0304-3975(00)00121-3 .

Engels, Gregor, Jens Gaulke, and Stefan Sauer. “Modelle Für Automobile Software - Objektorientierte Modellierung von Eingebetteten, Interaktiven Softwaresystemen Im Automobil.” Forschungsforum Paderborn 4 (2001): 24–29.

Lohmann, Marc, and Annika Wagner. “Using an XML-Capable Mailtool for the Communication in Software Development Projects.” In Proceedings of the Workshop on XML Technologies and Software Engineering (XSE; Satellite Event of the ICSE 2001), Toronto (Canada), 2001.

Schattkowsky, Tim, Katharina Mehner, and Ralph Depke. “Using UML Models for the Description of Concurrent Behavior in Component Interfaces.” In Proceedings of the Workshop on Concurrency Issues of the UML (Satellite Event of the International Conference on the Unified Modeling Language - UML 2001), Toronto (Canada), 2001.

Depke, Ralph, Reiko Heckel, and Jochen Küster. “Agent-Oriented Modeling with Graph Transformation.”http://dx.doi.org/10.1007/3-540-44564-1_7__In Proceedings of the First International Workshop on Agent-Oriented Software Engineering (AOSE 2000), Limerick (Ireland), 1957:105–20. LNCS. Berlin/Heidelberg: Springer, 2001.http://dx.doi.org/10.1007/3-540-44564-1_7 .

Depke, Ralph, and Katharina Mehner. “‘Separation of Concern’ Mit Rollen, Subjekten Und Aspekten.” In Proceedings of the Workshop on Aspektorientierung - Workshop Der GI-Fachgruppe 2.1.9 Objektorientierte Software-Entwicklung (2001), Paderborn (Germany), 1–7. Technical Report. Universität Paderborn, 2001.

Engels, Gregor, and Jochen Küster. “Enhancing UML-RT Concepts for Behavioral Consistent Architecture Models.” In Proceedings of the 1st Workshop on Describing Software Architecture with UML (Satellite Event of the ICSE 2001), Toronto (Canada), 2001.

Hendrik Hausmann, Jan, Jochen Küster, and Stefan Sauer. “Identifiying Semantic Dimensions of (UML) Sequence Diagrams.” In Proceedings of the Workshop on Practical UML-Based Rigorous Development Methods - Countering or Integrating the EXtremists (PUML, Colocated with the UML 2001), Toronto (Canada), 7:142–57. Lecture Notes in Informatics. Bonn: Gesellschaft für Informatik (GI), 2001.

Heckel, Reiko, and Jochen Küster. “Behavioral Constraints for Visual Models.”https://doi.org/dx.doi.org/10.1016/S1571-0661(04)00177-X__In Proceeding of the Workshop on Graph Transformation and Visual Modelling Techniques (GT-VMT 2001, Satellite Event of the ICALP 2001), Heraklion (Greece), Vol. 50. Electronic Notes in Theoretical Computer Science. Elsevier, 2001.https://doi.org/dx.doi.org/10.1016/S1571-0661(04)00177-X .

Mehner, Katharina, and Bernd Weymann. “Visualization and Debugging of Concurrent Java Programs with UML.” In Proceedings of the Workshop on Software Visualization (Satellite Event of the International Conference on Software Engineering - ICSE 2001), Toronto (Canada), 2001.