%0 Journal Article %A M. A. Perel'muter %T Nonlinear multiplicative inequalities and estimates of gradients of solutions of elliptic equations %J Matematičeskie zametki %D 1986 %P 75-86 %V 40 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1986_40_1_a7/ %G ru %F MZM_1986_40_1_a7