@article{RM_1962_17_5_a7,
     author = {S. B. Stechkin},
     title = {On a~problem of {P.} {L.~Ul'yanov}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1962},
     volume = {17},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1962_17_5_a7/}
}