%0 Journal Article
%A V. V. Dubrovskii
%T A~remark on a~theorem of M.\,V.~Keldysh
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1994
%P 159-160
%V 49
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1994_49_4_a11/
%G en
%F RM_1994_49_4_a11