@article{DAN_1962_144_1_a0,
     author = {A. M. Vershik},
     title = {On the theory of normal dynamical systems},
     journal = {Doklady Akademii Nauk},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {144},
     number = {1},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_1_a0/}
}