D. Abrams, R. Baecker, und M. Chignell. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, Seite 41--48. New York, NY, USA, ACM Press/Addison-Wesley Publishing Co., (1998)
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)
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, A. Hotho, und G. Stumme. Proceedings of the IR research, 30th European conference on Advances in information retrieval, Seite 101--113. Berlin, Heidelberg, Springer-Verlag, (2008)
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)
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)