1. A theoretical development for the computer generation of piecewise polynomial surfaces;Lane;IEEE Trans. Pattern Anal. and Mach. Intelligence,1980
2. Discrete B-spline and subdivision techniques in computer-aided geometric design and computer graphics;Cohen,1980
3. Using the Oslo algorithm as a basis for CAD/CAM geometric modelling;Riesenfeld,1981
4. Inserting new knots into B-spline curves;Boehm;Comput.-Aided Des.,1980
5. Volume modelling for sculptured objects;Peng,1983