%0 Journal Article %A E. S. Shalimova %T Steady and periodic modes in the problem of motion of a heavy material point on a rotating sphere (the viscous friction case) %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2014 %P 43-50 %N 4 %U http://geodesic.mathdoc.fr/item/VMUMM_2014_4_a6/ %G ru %F VMUMM_2014_4_a6