%0 Journal Article
%A Yu. S. Kolesov
%T Schauder's principle, and stability of periodic solutions
%J Doklady Akademii Nauk
%D 1969
%P 1234-1236
%V 188
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_188_6_a8/
%G ru
%F DAN_1969_188_6_a8