@article{DAN_1963_150_6_a12,
     author = {Ya. G. Sinai},
     title = {Spectral properties of ergodic dynamical systems},
     journal = {Doklady Akademii Nauk},
     pages = {1235--1237},
     publisher = {mathdoc},
     volume = {150},
     number = {6},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_6_a12/}
}