@inproceedings{DLT-2005-Priese,
	author        = "Lutz Priese",
	booktitle     = "{Proceedings of the Ninth International Conference on Developments in Language Theory}",
	doi           = "10.1007/11505877_34",
	isbn          = "3-540-26546-5",
	pages         = "385--396",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Semi-rational Sets of DAGs}",
	volume        = 3572,
	year          = 2005,
}