1. “Feature Modeling and Assembly Modeling - A Unified Approach”;Rimscha,1990
2. “A Hybrid Feature-Based Modelling System”;Pratt,1990
3. Libardi, E.C., Dixon, J.R. and Simmons, M.K. “Designing with features: Design and analysis of extrusions as an example”, 1986 ASME Spring National Design Engineering Conference and Show Proceedings, March 24-27. 1986, Chicago, IL.
4. Inui, M., Suzuki, H. Kimura, F.and Sata, T. “Generation and verification of process plans using dedicated models of products in computers”, Proceedings of ASME International Computers in Engineering Conference and Exhibition, July 20-24, 1986, Chicago, IL. pp. 275-285.
5. Dixon, J.R. “Unresolved Research Issues in Development of Design with Features Systems”, IFIP, WG 5.2. Workshop on Geometric Modeling, Rensselaerville, N.Y., June 17-21, 1990.