@inproceedings{ICALP-1995-HenzingerKW,
	author        = "Thomas A. Henzinger and Peter W. Kopke and Howard Wong-Toi",
	booktitle     = "{Proceedings of the 22nd International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/3-540-60084-1_93",
	isbn          = "3-540-60084-1",
	pages         = "417--428",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{The Expressive Power of Clocks}",
	volume        = 944,
	year          = 1995,
}