%0 Journal Article %A Ya. B. Vorobets %T On the uniform distribution of orbits of finitely generated groups and semigroups of plane isometries %J Sbornik. Mathematics %D 2004 %P 163-186 %V 195 %N 2 %U http://geodesic.mathdoc.fr/item/SM_2004_195_2_a1/ %G en %F SM_2004_195_2_a1