1. Youngblut, C. (1996). Review of virtual environment interface technology. Technical Report IDA Paper P-3186, Institute for Defense Analyses (IDA).
2. Virtual Reality and the Exploration of Cyberspace;Hamit,1993
3. www.immersion.com.
4. Gausemeier, J. (2004). A virtual reality-based design environment for self-optimizing mechatronic systems, In Mechatronics and Robotics, Eds. Drews, P. Eysoldt, Aachen, pp. 1333–1339.
5. Spagno, C. (2003). Construction of a three-sided immersive telecollaboration system. Proceedings of the IEEE VR, March, Los Angeles, CA, pp. 22–26.