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