@inproceedings{STOC-2001-Trakhtenbrot,
	author        = "Boris A. Trakhtenbrot",
	booktitle     = "{Proceedings of the 33rd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/380752.380884",
	isbn          = "1-58113-349-9",
	pages         = "754--755",
	publisher     = "{ACM}",
	title         = "{Automata, circuits and hybrids: facets of continuous time}",
	year          = 2001,
}