@inproceedings{DAC-1982-LiuE,
	author        = "Clive K. Liu and Charles M. Eastman",
	booktitle     = "{Proceedings of the 19th Design Automation Conference}",
	doi           = "10.1145/800263.809253",
	pages         = "514--520",
	publisher     = "{ACM/IEEE}",
	title         = "{Design of a graphic processor for computer-aided drafting}",
	year          = 1982,
}