] Foley, D. Van Dam, A. Feiner, S. Hughes, J. Computer Graphics. U.S.A, Addison-Wesley, 1997. ] Magnenat, N. Thalman,D. Computer Animation. Japon, Springer-Verlag, 1990. ] Rogers, D. Procedural Elements for Comptuer Graphics. U.S.A, McGaw-Hill, 1985. ] Rogers, D. Earnhow, R. State of the Art in Computer Graphics. U.S.A,Springer-Verlag, 1991. ] Watt[94] Watt, A. Watt, M. Advanced Animation on Rendering Techniques. Great Britain, Addison-Wesley, 1994. ] Harrington, S. Computer Graphics. U.S.A, McGraw-Hill.1983.
