Conceptual Structures: Common Semantics for Sharing Knowledge, 13th International Conference on Conceptual Structures, ICCS 2005, Kassel, Germany, July 17-22, 2005, Proceedings. Dau, Frithjof, Mugnier, Marie-Laure and Stumme, Gerd, eds. ICCS , Springer (2005). .

Contributions to ICCS 2005. Dau, Frithjof, Mugnier, Marie-Laure and Stumme, Gerd, eds. Contributions to ICCS 2005 , kassel university press , Kassel (2005). .

Working with Conceptual Structures -- Contributions to ICCS 2000. Suppl. Proc. 8th International
Conference on Conceptual Structures (ICCS 2000). Stumme, G., eds. , Shaker , Aachen (2000). .