@article{MS_1965__109_4_a7,
     author = {{\CYRV}.{\CYRI}. {\CYRL}{\cyre}{\cyrv}{\cyri}{\cyrn} and {\CYRE}.{\CYRK}. {\CYRG}{\cyro}{\cyrd}{\cyru}{\cyrn}{\cyro}{\cyrv}{\cyra}},
     title = {{\CYRO}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrn}{\cyre}{\cyrr}{\cyra}{\cyrv}{\cyre}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra} {{\CYRK}{\cyra}{\cyrr}{\cyrl}{\cyrs}{\cyro}{\cyrn}{\cyra}}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {643--646},
     publisher = {mathdoc},
     volume = {109},
     number = {4},
     year = {1965},
     zbl = {0198.08201},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1965__109_4_a7/}
}