Virtual reality : definitions, history and applications / SuperVision -- a parallel architecture for virtual reality / Virtual reality products / Computational model for the stereoscopic optics of a head-mounted display / Comprehensive virtual environment laboratory facility / Gesture driven interaction as a human factor in virtual environments -- an approach with neural networks / Using physical constraints in a virtual environment / Device synchronization using an optimal linear filter / Virtual reality techniques in flight simmulation / Using virtual reality techniques in the animation process / Dynamic fishEye information visualizations / Virtual reality : a tool for telepresence and human factors research / Critical aspects of visually coupled systems / AVIARY -- a generic virtual reality interface for real applications / Using gestures to control a virtual arm / Toward three-dimensional models of reality / Back to the cave -- cultural perspectives on virtual reality / Ethical issues in the application of virtual reality to the treatment of mental disorders