@article{IVM_1987_10_a6,
     author = {V. A. Ugrinovskiǐ},
     title = {A stochastic analogue of the frequency theorem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {37--43},
     publisher = {mathdoc},
     number = {10},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_10_a6/}
}