@inproceedings{ijcai2005p86,
  title     = {Three Truth Values for the SAT and MAX-SAT Problems},
  author    = {Lardeux, Frédéric and Saubion, Frédéric and Hao, Jin-Kao},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-05}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {187--191},
  year      = {2005},
  url       = {https://ijcai.org/proceedings/2005/86},
}