@article{DAN_1962_147_4_a13,
     author = {Ya. G. Sinai},
     title = {A weak isomorphism of transformations with invariant measure},
     journal = {Doklady Akademii Nauk},
     pages = {797--800},
     year = {1962},
     volume = {147},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_147_4_a13/}
}