@article{DLT-J-2007-Jez08,
	author        = "Artur Jez",
	doi           = "10.1142/S012905410800584X",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 3,
	pages         = "597--615",
	publisher     = "{World Scientific}",
	title         = "{Conjunctive Grammars Generate Non-Regular Unary Languages}",
	volume        = 19,
	year          = 2008,
}