TY - JOUR AU - Chun Cao TI - The chordal norm of discrete Möbius groups in several dimensions JO - Annales Fennici Mathematici PY - 1996 SP - 271 EP - 287 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AFM_1996_21_2_a2/ LA - en ID - AFM_1996_21_2_a2 ER -