@inproceedings{CIAA-2004-LeeS,
	author        = "Jonathan Lee and Jeffrey Shallit",
	booktitle     = "{Revised Selected Papers of the Ninth International Conference on Implementation and Application of Automata}",
	doi           = "10.1007/978-3-540-30500-2_2",
	isbn          = "3-540-24318-6",
	pages         = "2--22",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Enumerating Regular Expressions and Their Languages}",
	volume        = 3317,
	year          = 2004,
}