%0 Journal Article
%A B. N. Sadovskii
%T Application of topological methods in the theory of periodic solutions of nonlinear differential-operator equations of neutral type
%J Doklady Akademii Nauk
%D 1971
%P 1037-1040
%V 200
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a7/
%G ru
%F DAN_1971_200_5_a7