1. A Modification of Prager's Hardening Rule;Ziegler;Quart. of Applied Math.,1965
2. Evaluation of Solution Procedures for Material and/or Geometrically Non-Linear Structural Analysis;Stricklin;AIAA J.,1973
3. Visco-Plasticity and Plasticity—An Alternative for Finite Element Solution of Material Nonlinearities;Zienkiewicz,1973
4. A General Approach to Problems of Plasticity and Large Deformation Using Isoparametric Elements;Zienkiewicz,1973
5. Visco-Plasticity, Creep and Visco-Plastic Flow-Problems of Small, Large and Continuing Deformations;Zienkiewicz,1974