@article{DAN_1985_283_2_a12,
     author = {L. V. Rozovskii},
     title = {A problem of {A.\,N.~Kolmogorov}},
     journal = {Doklady Akademii Nauk},
     pages = {313--314},
     publisher = {mathdoc},
     volume = {283},
     number = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_283_2_a12/}
}