@inproceedings{DAC-1978-AllisonG,
	acmid         = "803077",
	author        = "Harvey C. Allison and Donald P. Greenberg",
	booktitle     = "{Proceedings of the 15th Design Automation Conference}",
	pages         = "133--137",
	publisher     = "{ACM}",
	title         = "{The three-dimensional graphical input method for architecture}",
	year          = 1978,
}