D. Nguyen, N. Smith, und C. Rosé. Proceedings of the 5th ACL-HLT Workshop on Language Technology for Cultural Heritage, Social Sciences, and Humanities, Seite 115--123. Stroudsburg, PA, USA, Association for Computational Linguistics, (2011)
G. Ifrim, M. Theobald, und G. Weikum. Proceedings of the 22nd International Conference on Machine Learning - Learning in Web Search (LWS 2005), Seite 18--26. Bonn, Germany, (2005)