%0 Journal Article %A I. F. Kobtsev %T The geodesic flow on a two-dimensional ellipsoid in the field of an elastic force. Topological classification of solutions %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2018 %P 27-33 %N 2 %U http://geodesic.mathdoc.fr/item/VMUMM_2018_2_a2/ %G ru %F VMUMM_2018_2_a2