%0 Journal Article %A O. A. Ladyzhenskaya %A N. N. Ural'tseva %T A variational problem for quasilinear elliptic equations with many independent variables %J Doklady Akademii Nauk %D 1960 %P 1330-1333 %V 135 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_135_6_a9/ %G ru %F DAN_1960_135_6_a9