1. Numerical Control—Mathematics and Applications;Bézier,1972
2. Mathematical and practical possibilities of UNISURF;Bézier,1974
3. Inserting new knots into B-spline curves;Boehm;CAD,1980
4. A Practical Guide to Splines;deBoor,1978
5. Computational Geometry for Design and Manufacture;Faux,1979