K. Bischoff, C. Firan, W. Nejdl, and R. Paiu. CIKM '08: Proceeding of the 17th ACM conference on Information and knowledge management, page 193--202. New York, NY, USA, ACM, (2008)
P. Chirita, S. Costache, W. Nejdl, and S. Handschuh. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 845--854. New York, NY, USA, ACM, (2007)
K. Bischoff, C. Firan, W. Nejdl, and R. Paiu. CIKM '08: Proceeding of the 17th ACM conference on Information and knowledge mining, page 193--202. New York, NY, USA, ACM, (2008)
P. Chirita, S. Costache, W. Nejdl, and S. Handschuh. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 845--854. New York, NY, USA, ACM Press, (2007)