1. Bettig, B., (1999), “A Graph-Based Geometric Problem Solving System for Mechanical Design and Manufacturing”, Ph.D. Dissertation, Arizona State University.
2. Clement, A., Desroches, A., Riviere A., (1991), “Theory and Practice of 3D Tolerancing for Assembly”, Proc. of CIRP Seminar on Computer-Aided Tolerancing, Penn State University, USA.
3. Dixon J., (1995), “Knowledge Based Systems for Design”, Journal Mechanical Design, Vol. 117, pp 11–16.
4. Elinson, A., Herrmann, J., Minis, Nau, D., Singh, G., (1997), “Toward Hybrid Variant/ Generative Process Planning”, DETC97/DFM-4333, Proceedings of DETC’97: Design for Manufacturing, Sacremento, CA.
5. Goel, A., Chandraskaran, B., (1989), “Use of Device Models in Adaptation of Design Cases”, Proceedings of the DARPA Workshops on Case-Based Reasoning, San Mateo, CA, Morgan Kaufmann, pp. 307–16.