@misc{MP_1961_2_6_a43,
     title = {{\CYRK} {\cyrs}{\cyrv}{\cyre}{\cyrd}{\cyre}{\cyrn}{\cyri}{\cyryu} {\cyra}{\cyrv}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrv}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {371},
     year = {1961},
     volume = {Ser. 2, 6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1961_2_6_a43/}
}