@article{10_21136_CMJ_1953_100069, author = {Novotn\'y, Miroslav}, title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrishrt} {\cyrh}{\cyra}{\cyrr}{\cyra}{\cyrk}{\cyrt}{\cyre}{\cyrr}{\cyri}{\cyrs}{\cyrt}{\cyri}{\cyrk}{\cyre} {\cyru}{\cyrp}{\cyro}{\cyrr}{\cyrya}{\cyrd}{\cyro}{\cyrch}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrk}{\cyro}{\cyrn}{\cyrt}{\cyri}{\cyrn}{\cyru}{\cyru}{\cyrm}{\cyra}}, journal = {Czechoslovak Mathematical Journal}, pages = {75--82}, publisher = {mathdoc}, volume = {03}, number = {1}, year = {1953}, doi = {10.21136/CMJ.1953.100069}, mrnumber = {0062198}, zbl = {0052.28404}, language = {ru}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1953.100069/} }