@article{10_21136_CPM_1957_117268,
     author = {Fabian, V\'aclav},
     title = {{\CYRR}{\cyra}{\cyrs}{\cyrsh}{\cyri}{\cyrr}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrm}{\cyre}{\cyrr}{\cyrery} {\cyrn}{\cyra} $\sigma$-{\cyrk}{\cyro}{\cyrl}{\cyrsftsn}{\cyrc}{\cyro}, {\cyrs}{\cyro}{\cyrd}{\cyre}{\cyrr}{\cyrzh}{\cyra}{\cyrshch}{\cyre}{\cyre} {\cyrv}{\cyrs}{\cyre} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrch}{\cyrn}{\cyrery}{\cyre} {\cyrm}{\cyrn}{\cyro}{\cyrzh}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyra}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {308--313},
     publisher = {mathdoc},
     volume = {082},
     number = {3},
     year = {1957},
     doi = {10.21136/CPM.1957.117268},
     mrnumber = {0088530},
     zbl = {0101.04204},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1957.117268/}
}