1. FEAST Report, FEAST Brite/Euram II Project FEAST (FEature based ASsembly Techniques), n. BE-8110, Work Programme, 1994.
2. FEAST Report, Identification of feature requirements, FEAST Technical Report, FEAST/2.0/BAe/19/01/D.BABBS, December 1995.
3. FEAST Report, Definition of feature requirements, FEAST Technical Report, FEAST/3.1/BAe/24/03/M.Gledhill, March 1996.
4. Salomons O.W., van Slooten F., de Koning F., van Houten M, Kals H.J., Conceptual Graphs in CAD, Annals of the CIRP, vol. 43/1/1994.
5. Robertson G.G., Cackinlay J.D. and Card S.K., Cone trees: Animated 3D visualizations of hierarchical information, In Proceedings of CHI’91: ACM Conference on Human Factors and Computing Systems. ACM, New York, 1991.