%0 Journal Article %A S. A. Abdel’khafiz %T Evolution of the rotations of a symmetric gyrostat with elastic ring about the center of mass of a body %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1988 %P 34-37 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1988_3_a8/ %G ru %F VMUMM_1988_3_a8