J. Gonzalez-Olalla, и G. Stumme. Semantic Web Mining. Proc. of the Semantic Web Mining Workshop of the 13th Europ. Conf., стр. 90. Helsinki, (августа 2002)
S. Staab, J. Angele, S. Decker, A. Hotho, A. Maedche, H. Schnurr, R. Studer, and Y. Sure. AAAI 2000/IAAI 2000 - Proceedings of the 17th National Conference on Artificial Intelligence and 12th Innovative Applications of Artificial Intelligence Conference, Austin/TX, USA, July 30-August 3, 2000, AAAI Press/MIT Press, (2000)