TY - JOUR AU - G. A. Margulis TI - Finiteness of quotient groups of discrete subgroups JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1979 SP - 28 EP - 39 VL - 13 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1979_13_3_a3/ LA - ru ID - FAA_1979_13_3_a3 ER -