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2. G.W. Rowe, Elements of Metalworking Theory, E. Arnold, London, 1979.
3. B. Avitzur, Handbook of Metal Forming Processes, Wiley, New York, 1983.
4. Finite element formulation for problems of large elastic-plastic deformation;McMeeking;Int. J. Solids Struct.,1975
5. Analysis of axisymmetric extrusion;Murota;Bull. JSME,1970