@inproceedings{ICALP-1976-HennessyA,
	author        = "Matthew Hennessy and Edward A. Ashcroft",
	booktitle     = "{Proceedings of the Third International Colloquium on Automata, Languages and Programming}",
	isbn          = "0-85224-308-1",
	pages         = "478--493",
	title         = "{The Semantics of Nondeterminism}",
	year          = 1976,
}