1. R. Anderson, J. and R. Pelletier. A development system for model-tracing. Journal of Artificial Intelligence in Education, 4(4):397–413, 1992.
2. B. Carr and I. Goldstein. Overlays: a Theory of Modeling for CAI. AI Memo 406, MIT, 1977.
3. C. Conati, A. Gertner, K. VanLehn, and M. Druzdzel. On-line student modeling for coached problem solving using bayesian networks. In A. Jameson, C. Paris, and C. Tasso, editors, User Modelling: Proceedings of the Sixth International Conference, UM97, pages 231–242, Vienna, July 1997. Springer Verlag.
4. P. Fung. Do-it-yourself student modelling. Computer Education, 20(1):81–87, 1993.
5. I. McCalla, G. and E. Greer, J. Granularity-Based Reasoning and Belief Revision in Student Models in Student Models: The Key to Individualized Edu cational Systems, J. Greer and G. McCalla (eds.). New York: Springer Verlag, 1994.