1. Theories of Plastic Buckling
2. A mathematical theory of plasticity based on the concept of slip;Batdorf;NACA TN No. 1871,1949
3. Mechanics of Incremental Deformation;Biot,1965
4. Trans. ASME 81;Budiansky;J. appl. Mech.,1959
5. A simple convex stress rate-strain rate relation in plasticity not relying on the yield surface concept;Christoffersen,1978