Köbler, F. ; Koene, P. ; Krcmar, H. ; Altmann, M. ; Leimeister, J. M.: LocaTag - An NFC-based system enhancing instant messaging tools with real-time user location. 2. In: 2. International Workshop on Near Field Communication (NFC) 2010. Monaco, Monaco, 2010. - 180 (28-10)

Jäschke, Robert ; Marinho, Leandro ; Hotho, Andreas ; Schmidt-Thieme, Lars ; Stumme, Gerd: Tag Recommendations in Social Bookmarking Systems. In: AI Communications, 21 (2008), Nr. 4, S. 231-247

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