Tsukasa Hirashima, Akihiro Kashihara, Jun ichi Toyoda. Toward a Learning Environment Allowing Learner-Directed Problem Practice. In Claude Frasson, Gilles Gauthier, Alan M. Lesgold, editors, Intelligent Tutoring Systems, Third International Conference, ITS 96, Montréal, Canada, June 12-14, 1996, Proceedings. Volume 1086 of Lecture Notes in Computer Science, pages 466-474, Springer, 1996.
Abstract is missing.