@inproceedings{DAC-1981-Williams,
	acmid         = "802386",
	author        = "Laurin Williams",
	booktitle     = "{Proceedings of the 18th Design Automation Conference}",
	pages         = "726--732",
	publisher     = "{ACM/IEEE}",
	title         = "{Automatic VLSI layout verification}",
	year          = 1981,
}