%0 Journal Article
%A V. A. Il'in
%T Existence of a~reduced system of eigen- and associated functions for a~nonselfadjoint ordinary differential operator
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1976
%P 148-155
%V 142
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1976_142_a9/
%G ru
%F TM_1976_142_a9