@InProceedings{bechet-foret:2003:ACL,
  author    = {Denis B\'{e}cet  and  Annie Foret},
  title     = {k-Valued Non-Associative Lambek Categorial Grammars are not Learnable from Strings},
  booktitle = {Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2003},
  address   = {Sapporo, Japan},
  publisher = {Association for Computational Linguistics},
  pages     = {351--358},
  url       = {http://www.aclweb.org/anthology/P03-1045},
  doi       = {10.3115/1075096.1075141}
}