@inproceedings{DLT-2007-Selivanov,
	author        = "Victor L. Selivanov",
	booktitle     = "{Proceedings of the 11th International Conference on Developments in Language Theory}",
	doi           = "10.1007/978-3-540-73208-2_37",
	isbn          = "978-3-540-73207-5",
	pages         = "399--410",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Fine Hierarchy of Regular Aperiodic ω-Languages}",
	volume        = 4588,
	year          = 2007,
}