@inproceedings{ijcai2001p83,
  title     = {A Comparative Study of Logic Programs with Preference},
  author    = {Schaub, Torsten and Wang, Kewen},
  booktitle = {Proceedings of the Seventeenth International Joint Conference on
               Artificial Intelligence, {IJCAI-01}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {597--601},
  year      = {2001},
  url       = {https://ijcai.org/proceedings/2001/83},
}