%0 Journal Article %A G. P. Cherepanov %T Problem of ambiguity in plasticity theory %J Doklady Akademii Nauk %D 1974 %P 779-782 %V 218 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_218_4_a9/ %G ru %F DAN_1974_218_4_a9