1. Continuous shading of curved surfaces;Gouraud;IEEE Trans. Computers,1971
2. An Introduction to Database Systems;Date,1975
3. A relational data base scheme for describing complex Pictures with color and texture;Kunii,1974
4. Computer generated displays of three-dimensional solid objects with colour and shading;Dodd,1976
5. A colour video system for interactive computer generated displays of three dimensional models;Hum,1975