@inproceedings{ijcai1991p92,
  title     = {Concept Formation over Explanations and Problem-Solving Experience},
  author    = {Yoo, Jungsoon P. and Fisher, Douglas H.},
  booktitle = {Proceedings of the Twelfth International Joint Conference on
               Artificial Intelligence, {IJCAI-91}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {John Mylopoulos and Ray Reiter},
  pages     = {630--636},
  year      = {1991},
  month     = {8},
  note      = {Learning Be Knowledge Acquisition},
  url       = {https://ijcai.org/proceedings/1991/92},
}