@inproceedings{DAC-1972-Koren,
	author        = "Norman L. Koren",
	booktitle     = "{Proceedings of the Ninth Design Automation Workshop}",
	doi           = "10.1145/800153.804932",
	pages         = "72--79",
	publisher     = "{ACM}",
	title         = "{Pin assignment in automated printed circuit board design}",
	year          = 1972,
}