Constrained approximation of rational Bézier curves based on a matrix expression of its end points continuity condition. - Hong-Jie Cai; Guo-Jin Wang (Comput. Aided Des., 2010)

Minimizing the maximal ratio of weights of rational Bézier curves and surfaces. - Hong-Jie Cai; Guo-Jin Wang (Comput. Aided Geom. Des., 2010)