%0 Journal Article
%A V. V. Basov
%A Yu. N. Bibikov
%T On the stability of the equilibrium state in a case of periodic perturbation of the center
%J Differencialʹnye uravneniâ
%D 1997
%P 583-586
%V 33
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1997_33_5_a1/
%G ru
%F DE_1997_33_5_a1