1. Déformations d'objets à volume constant;Aubert,1993
2. Global and local deformations of solid primitives;Barr;SIGGRAPH'84, ACM Comp. Graph,1984
3. The definition and handling of free-form primitives;Bechmann,1989
4. Animation through space and time based on a space deformation model;Bechmann,1993
5. Order controlled free-form animation;Bechmann,1993