Intelligent Tutoring Systems 6th International Conference, ITS 2002, Biarritz, France and San Sebastian, Spain, June 2-7, 2002. Proceedings - Cerri, Stefano A.; Cerri, Stefano A.; Gouarderes, Guy; Gouarderes, Guy; Paraguacu, Fabio; Paraguacu, Fabio (Springer Berlin Heidelberg : Imprint: Springer, 2002)