@inproceedings{LATA-2008-BechetDFG,
	author        = "Denis Béchet and Alexander Ja. Dikovsky and Annie Foret and Emmanuelle Garel",
	booktitle     = "{Revised Papers of the Second International Conference on Language and Automata Theory and Applications}",
	doi           = "10.1007/978-3-540-88282-4_10",
	isbn          = "978-3-540-88281-7",
	pages         = "88--100",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Optional and Iterated Types for Pregroup Grammars}",
	volume        = 5196,
	year          = 2008,
}