@inproceedings{ijcai1993p82,
  title     = {Preference-Based Semantics for Nonmonotonic Logics},
  author    = {Voorbraak, Frans},
  booktitle = {Proceedings of the Thirteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-93}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Ruzena Bajcsy},
  pages     = {584--590},
  year      = {1993},
  note      = {Knowledge Representation},
  url       = {https://ijcai.org/proceedings/1993/82},
}