1. The NURBS book;Piegl,1997
2. NURBS: from projective geometry to practical use;Farin,1999
3. Curves and surfaces for computer aided geometric design;Farin,2002
4. Real rational curves are not unit speed;Farouki;Comput Aided Geom Design,1991
5. Algebraically rectifiable parametric curves;Sakkalis;Comput Aided Geom Design,1993