%0 Journal Article
%A V. I. Rozhkov
%T Periodic solutions of linear systems with a small parameter in the derivative
%J Doklady Akademii Nauk
%D 1975
%P 1268-1271
%V 224
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_224_6_a7/
%G ru
%F DAN_1975_224_6_a7