@inproceedings{ijcai1983p220,
  title     = {Computer-Aided Studies of All Possible Shortest Single Axioms for the Equivalential Calculus},
  author    = {Kalman, John A. and Peterson, J. G.},
  booktitle = {Proceedings of the Eighth International Joint Conference on
               Artificial Intelligence, {IJCAI-83}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Alan Bundy},
  pages     = {933--934},
  year      = {1983},
  note      = {Theorem Proving},
  url       = {https://ijcai.org/proceedings/1983/220},
}