@inproceedings{HCI-CCAD-1999-KernB,
	author        = "Peter Kern and Ralf Breining",
	booktitle     = "{Proceedings of the Eighth International Conference on Human-Computer Interaction. Volume 2: Communication, Cooperation, and Application Design}",
	isbn          = "0-8058-3392-7",
	pages         = "696--700",
	publisher     = "{Lawrence Erlbaum}",
	title         = "{Experiences with interfaces for virtual environments in the field of engineering}",
	year          = 1999,
}