TY - JOUR AU - John M. Mackay AU - Alessandro Sisto TI - Quasi-hyperbolic planes in relatively hyperbolic groups JO - Annales Fennici Mathematici PY - 2020 SP - 139 EP - 174 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2020.4511/ DO - 10.5186/aasfm.2020.4511 LA - en ID - AFM_2020_45_1_a5 ER -