@inproceedings{ijcai1991p159,
  title     = {UMRAO: A Chess Endgame Tutor},
  author    = {Gadwal, Dinesh and Greer, Jim E. and McCalla, Gordon I.},
  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     = {1081--1085},
  year      = {1991},
  month     = {8},
  note      = {Principles of AI Applications},
  url       = {https://ijcai.org/proceedings/1991/159},
}