Brusilovsky, P., Schwarz, E., Weber, G. (1996) ELM-ART: An Intelligent Tutoring System on World Wide Web. En C. Frasson, G. Gauthier, A. Lesgold (Eds.): Third International Conference on Intelligent Tutoring Systems, ITS-96. Lecture Notes in Computer Science, Vol. 1086, Berlin: Springer Verlag, (pp. 261-269). Extret de Peter Brusilovsky: Publications)