Working with Conceptual Structures - Contributions to ICCS 2000. Suppl. Proc. 8th International
Conference on Conceptual Structures (ICCS 2000). Aachen, 2000 [BibTeX]
Conceptual Structures: Common Semantics for Sharing Knowledge, 13th International Conference on Conceptual Structures, ICCS 2005, Kassel, Germany, July 17-22, 2005, Proceedings. Lecture Notes in Computer Science , 2005 [Volltext][BibTeX]