A. Hotho, R. Jäschke, C. Schmitz, and G. Stumme. Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures, page 87-102. Aalborg, Aalborg Universitetsforlag, (2006)
S. Braun, A. Schmidt, and V. Zacharias. Workshop on Productive Knowledge Work : Management and Technological Challenges (ProKW), 4th Conference on Professional Knowledge Management - Experiences and Visions (WM 2007), (28-30 March 2007)