1. B. FOGG and G. A. JAMIESON (1975) The Influencing Factors in Optimizing Press Tool Die Layouts and a Solution Using Computer Aids, Annals of the CIRP Vol 24 PP 429–434
2. S. NAKAHARA, et al. (1978) Computer Aided Progressive Die Design, Proc. 19th MTDR Conf. PP171-176
3. O. F. SHIFMAN (1973) The PDDS System: A CAD-CAM Application to the Design of Press Tools, SME Technical Paper TE73-107
4. J. E. RYON III (1973) Computer Processes as Supplement to Conventional Die Design Method: Some Aspect of PDDC System, SME Technical Paper TE73-108