Kurt VanLehn. The Advantages of Explicitly Representing Problem Spaces. In Peter Brusilovsky, Albert T. Corbett, Fiorella de Rosis, editors, User Modeling 2003, 9th International Conference, UM 2003, Johnstown, PA, USA, June 22-26, 2003, Proceedings. Volume 2702 of Lecture Notes in Computer Science, pages 3, Springer, 2003. [doi]
Abstract is missing.