Krause, Beate and Schmitz, Christoph and Hotho, Andreas and Stumme, Gerd. The Anti-Social Tagger - Detecting Spam in Social Bookmarking Systems. Proc. of the Fourth International Workshop on Adversarial Information Retrieval on the Web. Year 2008.

Jäschke, Robert and Marinho, Leandro and Hotho, Andreas and Schmidt-Thieme, Lars and Stumme, Gerd. Tag Recommendations in Social Bookmarking Systems. In AI Communications, editor(s) Giunchiglia, Enrico. (21) 4: 231-247, IOS Press, Amsterdam, Year 2008.

Hotho, Andreas and Benz, Dominik and Eisterlehner, Folke and Jäschke, Robert and Krause, Beate and Schmitz, Christoph and Stumme, Gerd. Publikationsmanagement mit BibSonomy -- ein Social-Bookmarking-System für Wissenschaftler. In HMD -- Praxis der Wirtschaftsinformatik, (Heft 271) 47-58, Year 2010.

Krause, Beate and Jäschke, Robert and Hotho, Andreas and Stumme, Gerd. Logsonomy - Social Information Retrieval with Logdata. HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia. 157--166, ACM, New York, NY, USA, Year 2008.