@InProceedings{LIPN-2004-BF-CG04,
 author       = {Denis B\'echet and Annie Foret},
 title        = {On Intermediate Structures for Non-Associative {L}ambek
                   Grammars and Learnability},
 booktitle    = {Proceedings of the International Conference on Categorial
                   Grammars (CG2004), Montpellier, France, June 2004},
 editor       = {M. Moortgat and V. Prince},
 pages        = {180--194},
 month        = jun,
 year         = 2004
}