1. Chuang, S.-H., 1991, “Feature Recognition from Solid Models Using Conceptual Shape Graphs,” Ph.D. Thesis, Arizona State University.
2. Cutkosky, M. R., Tenenbaum, J. M., and Muller, D., 1988, “Features in Process-Based Design,” Proceedings of the International Computers in Engineering Conference, ASME, San Francisco, CA.
3. Dixon, J. R., 1988, “Designing with Features for Component Design,” Intl. Workshop on Features in Design and Manufacturing, National Science Foundation, February.
4. Gadh, R., 1991, “Abstraction of Manufacturing Features from Design,” Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA.
5. Gadh, R., and Prinz, F. B., 1992, “Recognition of Geometric Forms using the Differential Depth Filter,” Computer Aided Design, Butterworth-Heinemann Publishers, Vol. 24, No. 11, pp. 583–598.