@article{ADM_2003_4_a9,
     author = {Yaroslav Vorobets},
     title = {On faithful actions of groups and semigroups by orientation-preserving plane isometries},
     journal = {Algebra and discrete mathematics},
     pages = {118--125},
     publisher = {mathdoc},
     number = {4},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2003_4_a9/}
}