%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 Informatics and Automation
%D 1976
%P 148-155
%V 142
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1976_142_a9/
%G ru
%F TRSPY_1976_142_a9