1. Numerical Rational Approximation;Wang,1980
2. Curves and Surfaces for Computer Aided Geometric Design: A Practical Guide;Farin,1988
3. Multivariate Spline;Chui,1988
4. Multivariate Spline Functions and Their Applications;Wang,2001
5. The Mathematical Basis of The UNISURF CAD System;Bézier,1986