1. Single-valued curves in polar coordinates
2. G. Casciola and S. Morigi, Curves and Surfaces in Geometric Design, eds. P.J. Laurent, A. Le Méhauté and L. L. Schumaker (A.K. Peters, Wellesley MA, 1997) pp. 61–68.
3. Degree elevation for p-Bézier curves
4. Single-valued spline curves in polar coordinates
5. P. de Casteljau, Curves and Surfaces in Geometric Design, eds. P.J. Laurent, A. Le Méhauté and L. L. Schumaker (A.K. Peters, Wellesley MA, 1997) pp. 91–103.