Wings 3D/User Manual/References
3D Animation Workshop by Robert Robert Robert Polevoi;
3D Modeling and Surfacing; Bill Fleming; Academic Press; © 1999
Rapid Evaluation of Catmull-Clark Subdivision Surfaces; Jeffrey Bolz and Peter Schroder; Web3D '02, © 2002 The Winged Edge Data Structure; Dr. Ching-Kuang Shenefound; Michigan Technological University Principles of Three-Dimensional Computer Animation, Revised Edition; Michael O'Rourke; W.W.
Norton & Company, © 1998 Digital Sculpting Techniques by Bay Raitt and Greg Minter © Nichimen Graphics, 1998