@article{IVM_1976_3_a11,
     author = {V. F. Emel'yanov and S. V. Shvedenko},
     title = {A~problem of {P.} {L.~Ul'janov}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {99--102},
     year = {1976},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_3_a11/}
}