@inproceedings{ijcai2003p36,
  title     = {A Fast and Simple Algorithm for Bounds Consistency of the AllDifferent Constraint},
  author    = {López-Ortiz, Alejandro and Quimper, Claude-Guy and Tromp, John and van Beek, Peter},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {245--249},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/36},
}