@inproceedings{GG-1990-KaplanLG,
	author        = "Simon M. Kaplan and Joseph P. Loyall and Steven K. Goering",
	booktitle     = "{Proceedings of the Fourth International Workshop on Graph-Grammars and Their Application to Computer Science}",
	doi           = "10.1007/BFb0017407",
	editor        = "Hartmut Ehrig and Hans-Jörg Kreowski and Grzegorz Rozenberg",
	isbn          = "3-540-54478-X",
	pages         = "475--489",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Specifying Concurrent Languages and Systems with ???-Grammars}",
	volume        = 532,
	year          = 1990,
}