%0 Journal Article %A M. N. Feller %T Solvability of infinite-dimensional elliptic equations with variable coefficients %J Matematičeskie zametki %D 1979 %P 419-424 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1979_25_3_a9/ %G ru %F MZM_1979_25_3_a9