R. Jäschke, L. Marinho, A. Hotho, L. Thieme, und G. Stumme. Proceedings of the 11th European conference on Principles and Practice of Knowledge Discovery in Databases, Volume 4702 von PKDD 2007, Seite 506--514. Berlin, Heidelberg, Springer-Verlag, (2007)
F. Suchanek, M. Vojnovic, und D. Gunawardena. Proceedings of the 17th ACM Conference on Information and Knowledge Management, Seite 223--232. New York, NY, USA, ACM, (2008)
S. Sen, J. Vig, und J. Riedl. IUI '09: Proceedings of the 13th international conference on Intelligent user interfaces, Seite 87--96. New York, NY, USA, ACM, (2009)
Y. Song, Z. Zhuang, H. Li, Q. Zhao, J. Li, W. Lee, und C. Giles. Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, Seite 515--522. New York, NY, USA, ACM, (2008)