%0 Journal Article %A M. V. Belichenko %T On the Stability of Pendulum-type Motions in the Approximate Problem of Dynamics of a Lagrange Top with a Vibrating Suspension Point %J Russian journal of nonlinear dynamics %D 2018 %P 243-263 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2018_14_2_a7/ %G en %F ND_2018_14_2_a7