[Keefe et al., 2001]
Daniel Keefe, Daniel Acevedo, Tomer Moscovich, David H. Laidlaw, and Joseph LaViola. CavePainting: A Fully Immersive 3D Artistic Medium and Interactive Experience. In Proceedings of ACM Symposium on Interactive 3D Graphics, pages 85-93, March 2001. (pdf) (bibtex: Keefe-2001-CPF).