1. An introduction to the use of splines in computer graphics;Bartels;Tutorial 17, Siggraph '85,1985
2. A practical guide to splines;De Boor,1978
3. Computational geometry for design and manufacture;Faux,1979
4. Curves and surfaces for computer-aided design;Forrest,1968
5. Applications of B-spline approximation to geometric problems of computer-aided design;Riesenfeld,1973