@article{MS_1955__78_2_a4,
     author = {{\CYRL}.{\CYRI}. {\CYRG}{\cyra}{\cyrv}{\cyrr}{\cyri}{\cyrl}{\cyro}{\cyrv}},
     title = {{\CYRO} $K$-{\cyrp}{\cyrr}{\cyro}{\cyrd}{\cyro}{\cyrl}{\cyrzh}{\cyra}{\cyre}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrp}{\cyro}{\cyrl}{\cyri}{\cyrn}{\cyro}{\cyrm}{\cyro}{\cyrv}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {271--274},
     publisher = {mathdoc},
     volume = {78},
     number = {2},
     year = {1955},
     zbl = {0065.25002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1955__78_2_a4/}
}