@article{MP_1957_2_1_a17,
     author = {N. Ya. Vilenkin},
     title = {{\CYRO} {\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrr}{\cyrn}{\cyro}{\cyrishrt} {\cyrn}{\cyre}{\cyrp}{\cyrr}{\cyre}{\cyrr}{\cyrery}{\cyrv}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyri}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {167--168},
     year = {1957},
     volume = {Ser. 2, 1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1957_2_1_a17/}
}