@inproceedings{ijcai1993p66,
  title     = {Nonmonotonic Model Inference-A Formalization of Student Modeling},
  author    = {Ikeda, Mitsuru and Kono, Yasuyuki and Mizoguchi, Riichiro},
  booktitle = {Proceedings of the Thirteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-93}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Ruzena Bajcsy},
  pages     = {467--475},
  year      = {1993},
  note      = {Intelligent Tutoring Systems},
  url       = {https://ijcai.org/proceedings/1993/66},
}