@inproceedings{FASE-2008-OrejasEP,
	author        = "Fernando Orejas and Hartmut Ehrig and Ulrike Prange",
	booktitle     = "{Proceedings of the 11th International Conference on Fundamental Approaches to Software Engineering}",
	doi           = "10.1007/978-3-540-78743-3_14",
	isbn          = "978-3-540-78742-6",
	pages         = "179--198",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A Logic of Graph Constraints}",
	volume        = 4961,
	year          = 2008,
}