%0 Journal Article
%A A. T. Asanova
%T Periodic Solutions in the Plane of Systems of Second-Order Hyperbolic Equations
%J Matematičeskie zametki
%D 2017
%P 20-30
%V 101
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2017_101_1_a1/
%G ru
%F MZM_2017_101_1_a1