@article{CIAA-J-2010-DrosteM11,
	author        = "Manfred Droste and Ingmar Meinecke",
	doi           = "10.1142/S0129054111009069",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 8,
	pages         = "1829--1844",
	publisher     = "{World Scientific}",
	title         = "{Weighted Automata and Regular Expressions over Valuation Monoids}",
	volume        = 22,
	year          = 2011,
}