%0 Journal Article %A V. B. Lidskii %T Conditions for completeness of a system of root subspaces for non-selfadjoint operators with discrete spectrum %J Trudy Moskovskogo matematičeskogo obŝestva %D 1959 %P 83-120 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1959_8_a3/ %G ru %F MMO_1959_8_a3