Krasimir Spirov, Mihail Draganov. A Conceptual Model of a Computer-Aided Learning Knowledge Base. In Hermann A. Maurer, editor, Computer Assisted Learning, 2nd International Conference, ICCAL 89, Dallas, Texas, USA, May 9-11, 1989, Proceedings. Volume 360 of Lecture Notes in Computer Science, pages 500-516, Springer, 1989.
Abstract is missing.