Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1969_186_3_a7, author = {M. E. Ratner}, title = {A central limit theorem for $Y$-flows on three-dimensional manifolds}, journal = {Doklady Akademii Nauk}, pages = {519--521}, publisher = {mathdoc}, volume = {186}, number = {3}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1969_186_3_a7/} }
M. E. Ratner. A central limit theorem for $Y$-flows on three-dimensional manifolds. Doklady Akademii Nauk, Tome 186 (1969) no. 3, pp. 519-521. http://geodesic.mathdoc.fr/item/DAN_1969_186_3_a7/