1. H. Kuhn, Workability theory and applications, ibid, pp. 388–404.
2. A. Atkins, Fracture in Forming, Proceedings of the International Conference on Adv. in Mat. and Proc. Tech., Dublin, AMPT 93, 1993.
3. Fracture in cold upsetting forging—a criterion and model;Lee;Metall. Trans.,1973
4. A fracture criterion for cold forming;Kuhn;ASME J. Eng. Mat. Tech.,1973