TY - JOUR AU - V. V. Nikulin TI - The transition constant for arithmetic hyperbolic reflection groups JO - Izvestiya. Mathematics PY - 2011 SP - 971 EP - 1005 VL - 75 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2011_75_5_a5/ LA - en ID - IM2_2011_75_5_a5 ER -