@inproceedings{DAC-1972-BannaS,
	author        = "Sami Al Banna and William R. Spillers",
	booktitle     = "{Proceedings of the Ninth Design Automation Workshop}",
	doi           = "10.1145/800153.804950",
	pages         = "229--237",
	publisher     = "{ACM}",
	title         = "{An interactive computer graphics space allocation system}",
	year          = 1972,
}