1. Computer-aided surface representation and design;Barnhill,1982
2. A new twist in computer-aided geometric design;Barnhill;Computer Graphics and Image Processing,1978
3. A survey of curve and surface methods in CAGD;Boehm;Computer Aided Geometric Design,1984
4. An interactive algorithm for the generation of B-spline surfaces;Brunet,1983
5. Surfaces for computer-aided design of space forms;Coons;MIT Project MAC TR-41,1967