%0 Journal Article %A Ya. B. Vorobets %T On the Uniform Distribution of Orbits of Free Group and Semigroup Actions on a~Plane %J Informatics and Automation %D 2000 %P 64-95 %V 231 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2000_231_a2/ %G ru %F TRSPY_2000_231_a2