%0 Journal Article %A Ya. B. Vorobets %T On the Uniform Distribution of Orbits of Free Group and Semigroup Actions on a~Plane %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2000 %P 64-95 %V 231 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2000_231_a2/ %G ru %F TM_2000_231_a2