%0 Journal Article %A A. N. Starkov %T Invariant sets of homogeneous flows and Ratner's theorem %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1994 %P 178-179 %V 49 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1994_49_2_a20/ %G en %F RM_1994_49_2_a20