%0 Journal Article %A K. Kh. Boimatov %T Two-sided estimates of the eigenvalues of the Dirichlet problem for a~class of degenerate elliptic differential operators %J Informatics and Automation %D 1985 %P 16-28 %V 172 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a2/ %G ru %F TRSPY_1985_172_a2