C. Cattuto, D. Benz, A. Hotho, und G. Stumme. The Semantic Web - ISWC 2008, Volume 5318 von Lecture Notes in Computer Science, Springer Berlin / Heidelberg, (2008)
D. Lin. Proceedings of the Fifteenth International Conference on Machine Learning (ICML 1998), Madison, Wisconson, USA, July 24-27, 1998, Seite 296-304. Morgan Kaufmann, (1998)