%0 Journal Article %A A. P. Markeev %A T. N. Chekhovskaya %T On Nonlinear Oscillations and Stability of Coupled Pendulums in the Case of a Multiple Resonance %J Russian journal of nonlinear dynamics %D 2020 %P 607-623 %V 16 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2020_16_4_a5/ %G ru %F ND_2020_16_4_a5