%0 Journal Article
%A V. L. Krupenin
%T Asymmetric oscillations in systems that contain two-sided
%J Doklady Akademii Nauk
%D 1995
%P 49-52
%V 341
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1995_341_1_a13/
%G ru
%F DAN_1995_341_1_a13