P. Heymann, G. Koutrika, und H. Molina. WSDM '08: Proceedings of the international conference on Web search and web data mining, Seite 195--206. Palo Alto, California, USA, ACM, (2008)
B. Karweg, C. Huetter, und K. Böhm. Proceedings of the 20th ACM international conference on Information and knowledge management, Seite 1825--1834. New York, NY, USA, ACM, (2011)
F. Abel, N. Henze, und D. Krause. Proceedings of the 17th ACM Conference on Information and Knowledge Management, CIKM 2008, Napa Valley, California, USA, October 26-30, 2008, Seite 1429-1430. ACM, (2008)