@inproceedings{DAC-1976-Rutman,
	author        = "Roger Rutman",
	booktitle     = "{Proceedings of the 13th Design Automation Conference}",
	doi           = "10.1145/800146.804839",
	pages         = "392--398",
	publisher     = "{ACM}",
	title         = "{Non-gridded graphic input}",
	year          = 1976,
}