@misc{10_21136_CMJ_1953_100090,
     title = {{\CYRS}{\cyro}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyrya}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {297--300},
     year = {1953},
     volume = {3},
     number = {3},
     doi = {10.21136/CMJ.1953.100090},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1953.100090/}
}