1. Deep drawing experiments in ultrasonically vibrating tools;Tisza;Kohaszat,1983
2. A. Hofman, Deep drawing of locally optimized aluminum blanks, in: Proceedings of the Sixth International Conference on Advanced Technology of Plasticity, vol. II, 1999, pp. 1043–1450.
3. A. Hofman, F. Vollertsen, Deep drawing of locally heat treated blank, in: M. Geiger, F. Vollertsen (Eds.), Laser Assisted Net Shape Engineering, vol. 2 (Lane 97 Erlangen), Meissenbach, Bamberg, 1997, pp. 719–732.
4. Plastic instability conditions in the deep drawing of a circular blank of sheet metal;El-Sebaie;Int. J. Mech. Sci.,1972
5. CNC hydraulic multipoint blank-holder system for sheet metal forming presses;Siegert;Ann. CIRP,1993