@inproceedings{ijcai1999p65,
  title     = {Maximal Tractable Fragments of the Region Connection Calculus: A Complete Analysis},
  author    = {Renz, Jochen},
  booktitle = {Proceedings of the Sixteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-99}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Thomas Dean},
  pages     = {448--454},
  year      = {1999},
  note      = {Constraint Satisfaction},
  url       = {https://ijcai.org/proceedings/1999/65},
}