@inproceedings{DLT-2006-ItoLS,
	author        = "Masami Ito and Peter Leupold and Kayoko Shikishima-Tsuji",
	booktitle     = "{Proceedings of the 10th International Conference on Developments in Language Theory}",
	doi           = "10.1007/11779148_22",
	isbn          = "3-540-35428-X",
	pages         = "238--247",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Closure of Language Classes Under Bounded Duplication}",
	volume        = 4036,
	year          = 2006,
}