1. K. Lange, Cold forging—today and tomorrow, in: Proceedings of the Seventh International Cold Forging Congress, Birmingham, UK, 1985, pp. 3–14.
2. R. Geiger, State-of-the-art and development trends in cold forging technology, in: Proceedings of the Second ICTP, 1987, pp. 469–477.
3. Recent developments in tooling, machines and research in cold forming of complex parts;Pale;J. Mater. Process. Technol.,1992
4. Progress in nett-shape forging;Dean;Adv. Tech. Plasticity,1993
5. Some aspects of the economic production of complex bulk components by cold forging and machining;Lange;Adv. Tech. Plasticity,1993