@inproceedings{DAC-1974-CalafioreF,
	acmid         = "811409",
	author        = "R. L. Calafiore and John C. Foster",
	booktitle     = "{Proceedings of the 11th Design Automation Workshop}",
	pages         = "322--326",
	publisher     = "{ACM}",
	title         = "{A system for multilayer printed wiring layout}",
	year          = 1974,
}