%0 Journal Article %A A. V. Fursikov %T Boundary value problems for some classes of degenerating elliptic operators %J Doklady Akademii Nauk %D 1971 %P 535-538 %V 197 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_197_3_a8/ %G ru %F DAN_1971_197_3_a8