- Information Modelling and Knowledge Bases XXII, volume 225 of Frontiers in Artificial Intelligence and Applications, page 301-311. IOS Press, (2011)
- Temporal Databases: Research and Practice, volume 1399 of Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (1998)
- Rensselaer Polytechnic Institute, (1995)
- Proc. of the Second Int. Conference on Concept Mapping, (2006)
- Information Systems and E-Business Management 1(1):35--53 (January 2003)
- Journal of the Association for Information Systems (2007)
- Proc. of the First Int. Conference on Concept Mapping, (2004)
- Proc. of the First Int. Conference on Concept Mapping, (2004)
- Advances in Databases and Information Systems: 9th East European Conference, ADBIS 2005, volume 3631 / 2005 of Lecture Notes in Computer Science, page 309. Springer-Verlag, (2005)
- How Much Language Is Enough? Theoretical and Practical Use of the Business Process Modeling NotationAdvanced Information Systems Engineering (2008)
- Instructional Science 19(1):29--52 (January 1990)
- Concept Mapping - Connecting Educators. Proceedings of the 3rd International Conference on Concept Mapping. Volume III. Poster papers, page 202-205. IHMC, (2008)
- Proceedings of the Conceptual Structures Tool Interoperability Workshop, (2006)
- Requirements Engineering 7(2):61--72 (June 2002)
- Data \& Knowledge Engineering 46(1):41--64 (2003)
- Eighth CAiSE/IFIP8.1 International Workshop on Evaluation of Modeling Methods in Systems Analysis and Design EMMSAD'03, page 126-134. (2003)
- Advanced Information Systems Engineering, page 16--31. (2008)
- Conceptual Modeling - ER 2007 (2008)
- Conceptual Modeling - ER 2007 (2008)
- Journal of Web Semantics 6(1):38-53 (2008)


user