@inproceedings{ijcai2005p150,
  title     = {Breaking symmetries in all different problems},
  author    = {Puget, Jean-Francois},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-05}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {272--276},
  year      = {2005},
  url       = {https://ijcai.org/proceedings/2005/150},
}