%0 Journal Article %A B. S. Bardin %T On a Method of Introducing Local Coordinates in the Problem of the Orbital Stability of Planar Periodic Motions of a Rigid Body %J Russian journal of nonlinear dynamics %D 2020 %P 581-594 %V 16 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ND_2020_16_4_a3/ %G ru %F ND_2020_16_4_a3