1. Alefeld , G. , and J. Hcrzberger , Introduction to Interval Computations , Academic Press , New York , 1983 . Alefeld, G., and J. Hcrzberger, Introduction to Interval Computations, Academic Press, New York, 1983.
2. Tracing surface intersections
3. Guaranteed ray intersections with implicit surfaces
4. Mitchell , Don , " Robust Ray Intersections with Interval Arithn~tic ," Proceedings Graphics Interface '90 , May 1990 , pp. 68 - 74 . Mitchell, Don, "Robust Ray Intersections with Interval Arithn~tic," Proceedings Graphics Interface '90, May 1990, pp. 68-74.
5. Mitchell , Don , ". Throe Applications of Interval Analysis in Computer Graphics," Course Notes for Frontiers in Rendenng , Siggraph '91 . Mitchell, Don, ".Throe Applications of Interval Analysis in Computer Graphics," Course Notes for Frontiers in Rendenng, Siggraph '91.