@article{10_21136_CMJ_1953_100085, author = {Zl\'amal, Milo\v{s}}, title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrk}{\cyrr}{\cyri}{\cyrt}{\cyre}{\cyrr}{\cyri}{\cyri} {\cyru}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyro}{\cyrs}{\cyrt}{\cyri} {{\CYRL}{\cyrya}{\cyrp}{\cyru}{\cyrn}{\cyro}{\cyrv}{\cyra}}}, journal = {Czechoslovak Mathematical Journal}, pages = {257--264}, publisher = {mathdoc}, volume = {03}, number = {3}, year = {1953}, doi = {10.21136/CMJ.1953.100085}, mrnumber = {0062897}, zbl = {0052.31403}, language = {ru}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1953.100085/} }