%0 Journal Article %A Dzh. È. Allakhverdiev %T Multiply complete systems and nonselfadjoint operators depending on a parameter~$\lambda$ %J Doklady Akademii Nauk %D 1966 %P 11-14 %V 166 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_166_1_a1/ %G ru %F DAN_1966_166_1_a1