@inproceedings{ICGT-2006-HabelPR,
	author        = "Annegret Habel and Karl-Heinz Pennemann and Arend Rensink",
	booktitle     = "{Proceedings of the Third International Conference on Graph Transformations}",
	doi           = "10.1007/11841883_31",
	editor        = "Andrea Corradini and Hartmut Ehrig and Ugo Montanari and Leila Ribeiro and Grzegorz Rozenberg",
	isbn          = "3-540-38870-2",
	pages         = "445--460",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Weakest Preconditions for High-Level Programs}",
	volume        = 4178,
	year          = 2006,
}