M. Strohmaier, M. Lux, M. Granitzer, P. Scheir, S. Liaskos, и E. Yu. We Know'07 International Workshop on Collaborative Knowledge Management for Web Information Systems, in conjunction with WISE'07, Nancy, France, (2007)
U. Lee, Z. Liu, и J. Cho. WWW '05: Proceedings of the 14th International World Wide Web Conference, стр. 391--400. New York, NY, USA, ACM Press, (2005)