@inproceedings{DAC-1981-Luts,
	acmid         = "802344",
	author        = "William Luts",
	booktitle     = "{Proceedings of the 18th Design Automation Conference}",
	pages         = "462",
	publisher     = "{ACM/IEEE}",
	title         = "{Geometric modeling technology}",
	year          = 1981,
}