@article{MS_1957__83_3_a9,
     author = {{\CYRA}.{\CYRI}. {\CYRV}{\cyri}{\cyrn}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrd}{\cyro}{\cyrv}},
     title = {{\CYRP}{\cyri}{\cyrs}{\cyrsftsn}{\cyrm}{\cyro} {\cyrv} {\cyrr}{\cyre}{\cyrd}{\cyra}{\cyrk}{\cyrc}{\cyri}{\cyryu}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {415--416},
     publisher = {mathdoc},
     volume = {83},
     number = {3},
     year = {1957},
     zbl = {0079.27206},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1957__83_3_a9/}
}