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2. General Theorems for Elastic-plastic Solids;Koiter,1960
3. Form of the Relation between Stress and Finite Elastic and Plastic Strains under Impulsive Loading;Backman;J. Appl. Phys.,1964
4. A Shakedown Matrix Theory Allowing for Workhardening and Second-order Geometric Effects;Maier,1973
5. Dual Extremum Principles and Error Bounds in the Theory of Plates with Large Deflections;Stumpf;Arch. Mech.,1975