@inproceedings{DAC-1975-Welt,
	acmid         = "809062",
	author        = "Martin J. Welt",
	booktitle     = "{Proceedings of the 12th Design Automation Conference}",
	pages         = "152--161",
	publisher     = "{ACM}",
	title         = "{NOMAD: A printed wiring board layout system}",
	year          = 1975,
}