@inproceedings{ijcai1985p144,
  title     = {Prolog Extensions Based on Tableau Calculus},
  author    = {Schönfeld, Wolfgang},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {730--731},
  year      = {1985},
  note      = {Logic Programming},
  url       = {https://ijcai.org/proceedings/1985/144},
}