1. A Walk through BSP Trees
2. Hierarchical geometric models for visible surface algorithms
3. Cruz-Neira, Carolina, Daniel Sandin, J. and Thomas Dc-Fanti, A. “Surround-screen Projection-based Virtual Reality: The Design and Implementation of the CAVE.”. Proceedings of SIGGRAPH 93, Computer Graphics Proceedings, Annual Conference Series. Edited by: James Kajiya, T. pp.135–142. New York: ACM Press. [CrusNeira et al. 93]