[1] BOOR D.On calculation with B-spline[J].Approx.Theory,1992,(6):50-62.
[2] LONCARIC S.A survey of shape analysis techniques[J].Pattern Recognition,1998.
[3] WONG Y S,ONG C J.Optimization approach for biarc curve-fitting of B-spline curves[J].CAD Computer Aided Design,1996,28(12):951-959.
[4] PATRIKALAKIS N M,KRIEZIS G A.Approximation of B-spline geometries with lower degree presentations.[J].Journal of Offshore Mechanics and Arctic Engineering,1990,112(3):192-198.