@inproceedings{DAC-1980-KoppelmanM,
	author        = "George M. Koppelman and Klim Maling",
	booktitle     = "{Proceedings of the 17th Design Automation Conference}",
	doi           = "10.1145/800139.804546",
	isbn          = "0-89791-020-6",
	pages         = "328--335",
	publisher     = "{ACM/IEEE}",
	title         = "{Verifying deep logic hierarchies with ALEX}",
	year          = 1980,
}