@inproceedings{ijcai2003p32,
  title     = {Multiset Ordering Constraints},
  author    = {Frisch, Alan M. and Miguel, Ian and Kiziltan, Zeynep and Hnich, Brahim and Walsh, Toby},
  booktitle = {Proceedings of the Eighteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-03}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Georg Gottlob},
  pages     = {221--225},
  year      = {2003},
  url       = {https://ijcai.org/proceedings/2003/32},
}