TY - JOUR AU - G. A. Margulis TI - Applications of ergodic theory to the investigation of manifolds of negative curvature JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1969 SP - 89 EP - 90 VL - 3 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1969_3_4_a13/ LA - ru ID - FAA_1969_3_4_a13 ER -