A space based model for user interaction in shared synthetic environments.

Lennart E. Fahlén Charles Grant Brown Olov Ståhl Christer Carlsson A space based model for user interaction in shared synthetic environments. 43-48 1993 conf/chi/1993 INTERCHI http://doi.acm.org/10.1145/169059.169068 db/conf/chi/chi1993.html#FahlenBSC93