@inproceedings{GG-1982-Staples,
	author        = "John Staples",
	booktitle     = "{Proceedings of the Second International Workshop on Graph-Grammars and Their Application to Computer Science}",
	doi           = "10.1007/BFb0000121",
	editor        = "Hartmut Ehrig and Manfred Nagl and Grzegorz Rozenberg",
	isbn          = "3-540-12310-5",
	pages         = "392--404",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Two-level expression representation for faster evaluation}",
	volume        = 153,
	year          = 1982,
}