%0 Journal Article %A Yaroslav Vorobets %T On faithful actions of groups and semigroups by orientation-preserving plane isometries %J Algebra and discrete mathematics %D 2003 %P 118-125 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2003_4_a9/ %G en %F ADM_2003_4_a9