1. The Beta-spline: A local representation based on shape parameters and fundamental geometric measures;Barsky,1981
2. The Beta2-spline: A special case of the Beta-spline curve and surface representation;Barsky,1983
3. Arbitrary subdivision of Bézier curves;Barsky,1985
4. An introduction to the use of splines in computer graphics;Bartels,1983
5. Generating the Bézier points of B-spline curves and surfaces;Boehm;Computer-aided Design,1981