@article{GCM-J-2012-Hoffmann,
	author        = "Berthold Hoffmann",
	ee            = "http://journal.ub.tu-berlin.de/eceasst/article/view/828",
	journal       = "{Electronic Communications of the EASST}",
	title         = "{Graph Rewriting with Contextual Refinement}",
	volume        = 61,
	year          = 2013,
}