Xianming Chen, Richard F. Riesenfeld, Elaine Cohen. Rational Bezier patch differentiation using the rational forward difference operator. In Baining Guo, Hanspeter Pfister, Dimitris Samaras, editors, Computer Graphics International 2005, CGI 2005, Stony Brook, NY, USA, June 22-24, 2005. pages 129-134, IEEE Computer Society, 2005. [doi]
Abstract is missing.