J. Freyne, S. Anand, I. Guy, und A. Hotho. Proceedings of the fifth ACM conference on Recommender systems, Seite 383--384. New York, NY, USA, ACM, (2011)
J. Illig, A. Hotho, R. Jäschke, und G. Stumme. Knowledge Processing and Data Analysis, Volume 6581 von Lecture Notes in Computer Science, Seite 136--149. Berlin/Heidelberg, Springer, (2011)
R. Wetzker, W. Umbrath, und A. Said. ESAIR '09: Proceedings of the WSDM '09 Workshop on Exploiting Semantic Annotations in Information Retrieval, Seite 25--29. New York, NY, USA, ACM, (2009)
Y. Song, L. Zhang, und C. Giles. CIKM '08: Proceeding of the 17th ACM conference on Information and knowledge mining, Seite 93--102. New York, NY, USA, ACM, (2008)