@inproceedings{TAGT-1998-EhrigHLOPR,
	author        = "Hartmut Ehrig and Reiko Heckel and Mercè Llabrés and Fernando Orejas and Julia Padberg and Grzegorz Rozenberg",
	booktitle     = "{Selected Papers of the Sixth International Workshop on Theory and Application of Graph Transformations}",
	editor        = "Hartmut Ehrig and Gregor Engels and Hans-Jörg Kreowski and Grzegorz Rozenberg",
	isbn          = "3-540-67203-6",
	pages         = "85--102",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Double-Pullback Graph Transitions: A Rule-Based Framework with Incomplete Information}",
	volume        = 1764,
	year          = 1998,
}