%0 Journal Article
%A E. V. Petrova
%T The number and stability of nonlinear parametric oscillations in a~system of weakly coupled oscillators with pendulum nonlinearity
%J Matematičeskie zametki
%D 1999
%P 369-376
%V 65
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1999_65_3_a4/
%G ru
%F MZM_1999_65_3_a4