1. Material non-linearities;Aska,1972
2. ADINA—a finite element program for automatic dynamic incremental nonlinear analysis, 82448-1;Bathe,1975
3. Finite elements in nonlinear mechanics and large deformation elasto-plasticity;Kleiber,1977
4. Variational formulation in finite deformation elasto-plasticity with large increments and discontinuous fields;Kleiber,1979