[1]HENDERSON M R. Representing functionality and design intent in product models[C]//Proceedings of the 2nd ACM Symposium on Solid Modeling and Applications. New York, N.Y.,USA:ACM,1993:387-396.
[2]HENDERSON M R,TAYLOR L E. A meta-model for mechanical products based upon the mechanical design process[J]. Research in Engineering Design,1993,5(3/4):140-160.