%0 Journal Article
%A P. E. Sobolevskii
%T Second order equations in Banach space with a~small parameter at the higher derivative
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1964
%V 19
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1964_19_6_a26/
%G ru
%F RM_1964_19_6_a26