1. Beeri C and Thalheim B (1999) Identification as a primitive of database models. In: Proceedings FoMLaDO’98. Kluwer, London, pp 19–36
2. Börger E, Thalheim B (2008) A method for verifiable and validatable business process modeling. In: Software Engineering, Lecture notes in computer science, vol 5316. Springer, Heidelberg, pp 59–115
3. Lecture notes in computer science,1998
4. Deppert W (2009) Theorie der Wissenschaft. Lecture notes for academic year 2008/09, Christian-Albrechts-University at Kiel, http://wolfgang.deppert.de
5. Fiedler G, Thalheim B (2009) Towards semantic wikis: modelling intensions, topics, and origin in content management systems. Inform Model Knowl Bases XX:1–21