1. J.F. Lavoie, High velocity forming: new force in gear technology, Mach. Des. (1968) 146–151.
2. R.C. Miller, Pneumatic mechanical forging: state of the art, First International Conference HEF, Estates Park, June 1967.
3. W. Johnson, P.B. Mellor, Engineering Plasticity, Van Nostrand Rheinhold, New York, 1973, pp. 383–387.
4. T. Altan, Computer simulation to predict load, stress and metal flow in an axi-symmetric closed-die forging “metal forming”, A.L. Hoffmanner (Ed.), Plenum Press, New York, 1971, pp. 249–273.
5. Working pressures and deformation modes in axi-symmetric closed-die forging under static and dynamic conditions;Chitkara,1979