@inproceedings{DAC-1976-Yeh,
	author        = "Raymond T. Yeh",
	booktitle     = "{Proceedings of the 13th Design Automation Conference}",
	doi           = "10.1145/800146.804828",
	pages         = "295--300",
	publisher     = "{ACM}",
	title         = "{An approach to program verification}",
	year          = 1976,
}