TY - JOUR AU - Risto Atanasov TI - Geometric two-dimensional duality groups JO - Groups, geometry, and dynamics PY - 2014 SP - 69 EP - 95 VL - 8 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4171/ggd/217/ DO - 10.4171/ggd/217 ID - 10_4171_ggd_217 ER -