P. Singer, D. Helic, A. Hotho, и M. Strohmaier. Proceedings of the 24th International Conference on World Wide Web, стр. 1003--1013. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2015)
J. Huang, Z. Zhuang, J. Li, и C. Giles. Proceedings of the 2008 International Conference on Web Search and Data Mining, стр. 107--116. New York, NY, USA, ACM, (2008)
G. Stumme. Proceedings of the International Conference on Database and Expert Systems Applications (DEXA), том 2453 из LNCS, стр. 534-546. Springer, (2002)