@inproceedings{ijcai1989p63,
  title     = {Logic Programming with General Clauses and Defaults Based on Model Elimination},
  author    = {Casanova, Marco A. and Guerreiro, Ramiro A. de T. and Silva, Andrea},
  booktitle = {Proceedings of the Eleventh International Joint Conference on
               Artificial Intelligence, {IJCAI-89}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {N. S. Sridharan},
  pages     = {395--399},
  year      = {1989},
  month     = {8},
  note      = {Automated Deduction},
  url       = {https://ijcai.org/proceedings/1989/63},
}