Grigory Begelman, Philipp Keller, Frank Smadja; Technion Israel Institute of Technology, Citrin Informatik GmbH and RawSugar at Collaborative Tagging Workshop WWW 2006
A. Ankolekar, M. Krötzsch, T. Tran, und D. Vrandecic. WWW '07: Proceedings of the 16th international conference on World Wide Web, Seite 825--834. New York, NY, USA, ACM Press, (2007)