@article{DLT-J-2010-HolzerK11,
	author        = "Markus Holzer and Martin Kutrib",
	doi           = "10.1142/S0129054111008866",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 7,
	pages         = "1533--1548",
	publisher     = "{World Scientific}",
	title         = "{The Complexity of Regular(-like) Expressions}",
	volume        = 22,
	year          = 2011,
}