@inproceedings{CSL-2010-BarthwalN,
	author        = "Aditi Barthwal and Michael Norrish",
	booktitle     = "{Proceedings of the 19th EACSL Annual Conference / 24th International Workshop on Computer Science Logic}",
	doi           = "10.1007/978-3-642-15205-4_11",
	isbn          = "978-3-642-15204-7",
	pages         = "95--109",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{A Formalisation of the Normal Forms of Context-Free Grammars in HOL4}",
	volume        = 6247,
	year          = 2010,
}