1. Curves and surfaces for computer aided geometric design;Farin,1990
2. An interface for creating and manipulating curves using a high degree-of-freedom curve input device;Grossman,2003
3. A suggestive interface for image guided 3D sketching;Tsang,2004
4. Cords: keyframe control of curves with physical properties;Coleman,2004
5. Fairing cubic B-spline curves;Farin;Computer Aided Geometric Design,1987