1. The theory of splines and their applications;Ahlberg,1967
2. A practical guide to splines;de Boor,1978
3. A review of methods for curve and function drawing;Brodlie,1980
4. Spline algorithms for curves and surfaces;Späth,1974
5. Interpolation with interval and point tension controls using cubic weighted ν-splines;Foley;ACM Trans. Math. Softw.,1987