%0 Journal Article %A L. N. Gagen-Torn %T Solvability by the Ritz method for functionals of the theory of plasticity %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1962 %P 190-195 %V 66 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1962_66_a11/ %G ru %F TM_1962_66_a11