Benz, Dominik, Körner, Christian, Hotho, Andreas, Stumme, Gerd and Strohmaier, Markus. "One Tag to Bind Them All : Measuring Term Abstractness in Social Metadata." Paper presented at the meeting of the Proceedings of the 8th Extended Semantic Web Conference (ESWC 2011), Heraklion, Crete, 2011.

Cattuto, Ciro, Benz, Dominik, Hotho, Andreas and Stumme, Gerd. "Semantic Grounding of Tag Relatedness in Social Bookmarking Systems." In The Semantic Web - ISWC 2008 , edited by Amit Sheth, Steffen Staab, Mike Dean, Massimo Paolucci, Diana Maynard, Timothy Finin and Krishnaprasad Thirunarayan , 615--631. : Springer Berlin / Heidelberg, 2008.

Krause, Beate, Schmitz, Christoph, Hotho, Andreas and Stumme, Gerd. "The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems." Paper presented at the meeting of the AIRWeb '08: Proceedings of the 4th International Workshop on Adversarial Information Retrieval on the Web, New York, NY, USA, 2008.