@inproceedings{INTERCHI-1993-Venolia,
	author        = "Dan Venolia",
	booktitle     = "{Proceedings of the 11th ACM SIGCHI Conference on Human Factors in Computing Systems, jointly organised with the IFIP TC13 International Conference on Human-Computer Interaction}",
	doi           = "10.1145/169059.169065",
	isbn          = "0-89791-575-5",
	pages         = "31--36",
	publisher     = "{ACM}",
	title         = "{Facile 3D direct manipulation}",
	year          = 1993,
}