%0 Journal Article %A K. Kh. Boimatov %T Distribution of eigenvalues of degenerate elliptic operators %J Doklady Akademii Nauk %D 1979 %P 521-524 %V 248 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1979_248_3_a0/ %G ru %F DAN_1979_248_3_a0