%0 Journal Article %A S. D. Furta %T The instability of equilibrium of a gyroscopic system with two degrees of freedom %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1987 %P 100-101 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1987_5_a22/ %G ru %F VMUMM_1987_5_a22