@inproceedings{UML-2004-SteinHU,
	author        = "Dominik Stein and Stefan Hanenberg and Rainer Unland",
	booktitle     = "{Proceedings of the Seventh International Conference on the Unified Modelling Language: Modelling Languages and Applications}",
	doi           = "10.1007/978-3-540-30187-5_8",
	editor        = "Thomas Baar and Alfred Strohmeier and Ana M. D. Moreira and Stephen J. Mellor",
	isbn          = "3-540-23307-5",
	pages         = "98--112",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Query Models}",
	volume        = 3273,
	year          = 2004,
}