%0 Journal Article %A A. S. Shaura %A V. A. Tenenev %A E. V. Vetchanin %T The Problem of Balancing an Inverted Spherical %J Russian journal of nonlinear dynamics %D 2021 %P 507-525 %V 17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2021_17_4_a10/ %G en %F ND_2021_17_4_a10