1. Programming with Process Groups: Group and Multicast Semantics;Birman,1991
2. A virtual environment user interface for a robotic assistive device;Andersson,1993
3. The information visualizer, an information workspace;Card,1991
4. Rapid controlled movement through a virtual 3D workspace;Macinlay,1990
5. An architecture for virtual worlds;Appino;Presence,1991