%0 Journal Article %A M. G. Dzhavadov %T On the completeness of certain of the eigenfunctions of a non-selfadjoint differential operator %J Doklady Akademii Nauk %D 1964 %P 723-725 %V 159 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_159_4_a5/ %G ru %F DAN_1964_159_4_a5