1. The ß-spline, a local representation based on shape parameters and fundamental geometric measures;Barsky,1981
2. An intuitive approach to geometric continuity for parametric curves and surfaces;Barsky,1985
3. A pentagonal surface patch for computer aided geometric design;Charrot;Computer Aided Geometric Design,1984
4. Geometric continuity: a parameterization independent measure of continuity for computer aided geometric design;DeRose,1985
5. Properties of ß-splines;Goodman;J. Approx. Theory,1985