@inproceedings{ICALP-2003-DrosteK,
	author        = "Manfred Droste and Dietrich Kuske",
	booktitle     = "{Proceedings of the 30th International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/3-540-45061-0_35",
	isbn          = "3-540-40493-7",
	pages         = "426--438",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Skew and Infinitary Formal Power Series}",
	volume        = 2719,
	year          = 2003,
}