1. T. Akimoto, K. Mase, A. Hashimoto, and Y Suenage. Pixel selected ray tracing. Eurographics’89 Proceedings (Hamburg, Germany), pages 39–50, September 1989.
2. J. R. Arvo. Backward ray tracing. SIGGRAPH’86 Course Notes: Developments in Ray Tracing, 12, August 1986.
3. A. Campbell and D. Fussell. Adaptive mesh generation. Computer Graphics (SIGGRAPH’90 Proceedings), 24 (4): 155–164, August 1990.
4. M. F. Cohen, D. P. Greenberg, D. S. Immel, and P. J. Brock. An efficient radiosity approach for realistic image synthesis. IEEE CG&A, 6 (3): 26–35, March 1986.
5. M. F. Cohen and J. R. Wallace. Radiosity and Realistic Image Synthesis. Academic Press Professional, London, 1993.