@inproceedings{CHI-1989-Hauptmann,
	author        = "Alexander G. Hauptmann",
	booktitle     = "{Proceedings of the Seventh ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/67449.67496",
	pages         = "241--245",
	publisher     = "{ACM}",
	title         = "{Speech and gestures for graphic image manipulation}",
	year          = 1989,
}