1. Degree elevation for single-valued curves in polar coordinates;Casciola,1996
2. Splines focales;de Casteljau,1994
3. Curves and Surfaces for CAGD, A Practical Guide;Farin,1993
4. Algorithms for polynomials in Bernstein form;Farouki;Computer Aided Geometric Design,1988
5. B-splines on the circle and trigonometric B-splines;Goodman,1984