1. Essentials of Padé approximants;Baker,1975
2. Approximation of logarithmic spirals;Baumgarten;Computer Aided Geometric Design,1996
3. NURBS approximation of surface surface intersection curves;Bajaj;Advances in Computational Mathematics,1994
4. Bézier patches on quadrics;Boehm,1991
5. Rational geometric splines;Boehm;Computer Aided Geometric Design,1987