@inproceedings{DLT-2001-FernauS,
	author        = "Henning Fernau and Ralf Stiebe",
	booktitle     = "{Revised Papers of the Fifth International Conference on Developments in Language Theory}",
	doi           = "10.1007/3-540-46011-X_24",
	isbn          = "3-540-43453-4",
	pages         = "281--292",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Valuated and Valence Grammars: An Algebraic View}",
	volume        = 2295,
	year          = 2001,
}