@article{10_4064_sm_32_3_285_293,
     author = {{\CYRL}. {\CYRS}{\cyra}{\cyrl}{\cyre}{\cyrh}{\cyro}{\cyrv} and {\CYRE}. {\CYRS}{\cyre}{\cyrm}{\cyre}{\cyrn}{\cyro}{\cyrv}},
     title = {{\CYRO} {\cyrs}{\cyrh}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrn}{\cyre}{\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyre}{\cyrm}{\cyre}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyro}{\cyrn}{\cyra}{\cyrl}{\cyro}{\cyrv} {\cyrv} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre} {{\CYRO}{\cyrr}{\cyrl}{\cyri}{\cyrch}{\cyra}}},
     journal = {Studia Mathematica},
     pages = {285--293},
     publisher = {mathdoc},
     volume = {32},
     number = {3},
     year = {1969},
     doi = {10.4064/sm-32-3-285-293},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-32-3-285-293/}
}