1. On partially plastic thick-walled tubes;Koiter;Biezeno Ann. Vol.,1953
2. On the use of singular yield conditions and associated flow rules;Prager;J. Appl. Mech.,1953
3. James Clayton Lecture;Prager,1955
4. Minimum principles of piecewise linear isotropic plasticity;Hodge;J. Rat. Mech. and Anal.,1956
5. A survey of the mathematical theory of plasticity