@inproceedings{ICALP-1990-Pelletier,
	author        = "Maryse Pelletier",
	booktitle     = "{Proceedings of the 17th International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/BFb0032055",
	isbn          = "3-540-52826-1",
	pages         = "512--525",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Boolean Closure and Unambiguity of Rational Sets}",
	volume        = 443,
	year          = 1990,
}