Local Energy Fairing of B-spline Curves. - Matthias Eck 002; Jan Hadenfeld (Geometric Modelling, 1993)

Knot removal for B-spline curves. - Matthias Eck 002; Jan Hadenfeld (Comput. Aided Geom. Des., 1995)

Fairing of B-Spline Curves and Surfaces. - Jan Hadenfeld (Advanced Course on FAIRSHAPE, 1996)