1. Study on the formability of sheet steels;Nakazima;Yawata Tech Report,1968
2. Ductile fracture strains of sheet steel by hydrostatic bulge test;Okamoto;Ia metall italiania,1968
3. A user's guide to forming limit diagrams;Pearce;Sheet Met. Ind.,1971
4. Laboratory determined forming limit diagrams;Haberfield;Sheet Met. Ind.,1973
5. Variability of forming limit curves;van Minh;Int. J. Mech. Sci.,1974