@article{10_21136_CMJ_1953_100088,
     author = {Pt\'ak, Vlastimil},
     title = {{\CYRO} {\cyrp}{\cyro}{\cyrl}{\cyrn}{\cyrery}{\cyrh} {\cyrt}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrg}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra}{\cyrh}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {285--290},
     publisher = {mathdoc},
     volume = {03},
     number = {3},
     year = {1953},
     doi = {10.21136/CMJ.1953.100088},
     mrnumber = {0064302},
     zbl = {0052.33803},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1953.100088/}
}