TY - JOUR AU - B. N. Apanasov TI - On a class of Kleinian groups in $R^n$ JO - Doklady Akademii Nauk PY - 1974 SP - 509 EP - 510 VL - 215 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_215_3_a1/ LA - ru ID - DAN_1974_215_3_a1 ER -