R. Jäschke, A. Hotho, C. Schmitz, und G. Stumme. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), Volume 4604 von Lecture Notes in Artificial Intelligence, Seite 283--295. Berlin, Heidelberg, Springer-Verlag, (Juli 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)
R. Jäschke, A. Hotho, F. Mitzlaff, und G. Stumme. Recommender Systems for the Social Web, Volume 32 von Intelligent Systems Reference Library, Springer, Berlin/Heidelberg, (2012)
S. Doerfel, R. Jäschke, A. Hotho, und G. Stumme. Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web, Seite 9--16. New York, NY, USA, ACM, (September 2012)
B. Krause, C. Schmitz, A. Hotho, und G. Stumme. AIRWeb '08: Proceedings of the 4th International Workshop on Adversarial Information Retrieval on the Web, Seite 61--68. New York, NY, USA, ACM, (April 2008)