@article{FAA_1969_3_4_a13,
     author = {G. A. Margulis},
     title = {Applications of ergodic theory to the investigation of manifolds of negative curvature},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {89--90},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1969_3_4_a13/}
}