%0 Journal Article %A R. Ya. Doktorskii %T Eigenvalues of some classes of integral operators %J Doklady Akademii Nauk %D 1989 %P 21-24 %V 307 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_307_1_a3/ %G ru %F DAN_1989_307_1_a3