S. Bao, G. Xue, X. Wu, Y. Yu, B. Fei, und Z. Su. WWW '07: Proceedings of the 16th international conference on World Wide Web, New York, NY, USA, ACM Press, (2007)
M. Noll, und C. Meinel. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, Volume 4825 von LNCS, Seite 365--378. Berlin, Heidelberg, Springer Verlag, (November 2007)
B. Krause, A. Hotho, und G. Stumme. Advances in Information Retrieval, 30th European Conference on IR Research, ECIR 2008, 4956, Seite 101-113. Springer, (2008)
P. Heymann, G. Koutrika, und H. Garcia-Molina. WSDM '08: Proceedings of the international conference on Web search and web data mining, Seite 195--206. New York, NY, USA, ACM, (2008)
Y. Yanbe, A. Jatowt, S. Nakamura, und K. Tanaka. JCDL '07: Proceedings of the 7th ACM/IEEE-CS joint conference on Digital libraries, Seite 107--116. New York, NY, USA, ACM, (2007)