J. van Baar, T. Willwacher, S. Rao, und R. Raskar. EGVE '03: Proceedings of the workshop on Virtual environments 2003, Seite 281--286. New York, NY, USA, ACM, (2003)
C. Cruz-Neira, D. Sandin, und T. DeFanti. SIGGRAPH '93: Proceedings of the 20th annual conference on Computer graphics and interactive techniques, Seite 135--142. New York, NY, USA, ACM, (1993)