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.

Lerch, Hana and Krause, Beate and Hotho, Andreas and Roßnagel, Alexander and Stumme, Gerd. Social Bookmarking-Systeme – die unerkannten Datensammler - Ungewollte personenbezogene Datenverabeitung?. In MultiMedia und Recht, (7) 454-458, Year 2010.