M. Grahl, A. Hotho, und G. Stumme. 7th International Conference on Knowledge Management (I-KNOW '07), Seite 356-364. Graz, Austria, Know-Center, (September 2007)
A. Hotho, R. Jäschke, C. Schmitz, und G. Stumme. Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures, Seite 87-102. Aalborg, Aalborg Universitetsforlag, (2006)
B. Krause, A. Hotho, und G. Stumme. 30th European Conference on IR Research, ECIR 2008, Volume 4956 von Lecture Notes in Computer Science, Seite 101-113. Glasgow, UK, Springer, (April 2008)