%0 Journal Article %A V. B. Lidskii %T On the completeness of a system of eigen elements and adjoint elements of a compacte operator %J Doklady Akademii Nauk %D 1957 %P 234-236 %V 115 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a8/ %G ru %F DAN_1957_115_2_a8