%0 Journal Article %A I. A. Kipriyanov %T A variational method of solving a class of degenerate elliptic equations %J Doklady Akademii Nauk %D 1963 %P 35-38 %V 152 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_152_1_a7/ %G ru %F DAN_1963_152_1_a7