%0 Journal Article
%A A. I. Virozub
%T Power completeness of the system of elementary solutions of a differential equation in Hilbert space
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1975
%P 52-53
%V 9
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1975_9_1_a10/
%G ru
%F FAA_1975_9_1_a10