@article{10_21136_CMJ_1957_100246,
     author = {Kurzweil, Jaroslav and Vrko\v{c}, Ivo},
     title = {{\CYRO}{\cyrb} {\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {{\CYRL}{\cyrya}{\cyrp}{\cyru}{\cyrn}{\cyro}{\cyrv}{\cyra}} {\cyro}{\cyrb} {\cyru}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyri} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {{\CYRP}{\cyre}{\cyrr}{\cyrs}{\cyri}{\cyrd}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro}} {\cyro} {\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrr}{\cyrn}{\cyro}{\cyrishrt} {\cyru}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyro}{\cyrs}{\cyrt}{\cyri}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {254--272},
     publisher = {mathdoc},
     volume = {07},
     number = {2},
     year = {1957},
     doi = {10.21136/CMJ.1957.100246},
     mrnumber = {0089325},
     zbl = {0097.07301},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1957.100246/}
}