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@article{DAN_1960_133_6_a9, author = {Ya. G. Sinai}, title = {The central limit theorem for geodesic flows on manifolds of constant negative curvature}, journal = {Doklady Akademii Nauk}, pages = {1303--1306}, publisher = {mathdoc}, volume = {133}, number = {6}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_133_6_a9/} }
Ya. G. Sinai. The central limit theorem for geodesic flows on manifolds of constant negative curvature. Doklady Akademii Nauk, Tome 133 (1960) no. 6, pp. 1303-1306. http://geodesic.mathdoc.fr/item/DAN_1960_133_6_a9/