%0 Journal Article %A Ya. A. Kamenyarzh %T Conditions on surfaces of discontinuity in rigid-plastic analysis %J Doklady Akademii Nauk %D 1986 %P 574-578 %V 286 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_286_3_a13/ %G ru %F DAN_1986_286_3_a13