1. Determination of forming limits in automotive stampings;Keeler;Sheet Metals Industries,1965
2. Application of strain analysis to sheet metal forming problems in the press shop;Goodwin;Metallurgical Italiana,1968
3. Representation of forming limits for negative incremental forming of thin sheet metals;Strano,2004
4. Finite element analysis of limit strains in biaxial stretching of sheet metals allowing for ductile fracture;Takuda;International Journal of Mechanical Sciences,2000