1. Courbes et Surfaces. Mathématiques et CAO;Bézier,1986
2. Fairing cubic B-spline curves;Farin;Computer Aided Geometric Design,1987
3. Curvature and the fairness of curves and surfaces;Farin,1989
4. An Interactive CAD System for Construction of Shapes with High-Quality Surface, IFIP'83;Higashi,1983
5. Generation of high quality curve and surface with smoothing varying curvature;Higashi,1988