1. New solutions to rigid-plastic deformation problems using matrix method;Lee;Trans. ASME, J. Eng. Ind.,1973
2. ALPID — A general purpose FEM program for metal forming;Oh,1981
3. Metal Forming and the Finite Element Method;Kobayashi,1989
4. Capabilities and applications of FEM code DEFORM: the perspective of the developer;Oh,1991
5. Mathematical Theory of Elasticity;Sokolnikoff,1956