@article{MP_1957_a22,
     author = {Yu. E. Borovskii},
     title = {{\CYRD}{\cyrzh}.~{\CYRN}{\cyrerev}{\cyrsh}, {{\CYRN}.~{\CYRK}{\cyryo}{\cyrishrt}{\cyrp}{\cyre}{\cyrr}.} {{\CYRI}{\cyrz}{\cyrg}{\cyri}{\cyrb}{\cyra}{\cyrn}{\cyri}{\cyre}} {\cyrg}{\cyrl}{\cyra}{\cyrd}{\cyrk}{\cyri}{\cyrh} {\cyrp}{\cyro}{\cyrv}{\cyre}{\cyrr}{\cyrh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyre}{\cyrishrt} {\cyri} {\cyrp}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyro}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrp}{\cyro}{\cyrv}{\cyre}{\cyrr}{\cyrh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyre}{\cyrishrt} {\cyrs}~{\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrn}{\cyrn}{\cyro}{\cyrishrt} {\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrk}{\cyro}{\cyrishrt}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {261--263},
     publisher = {mathdoc},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1957_a22/}
}