@article{10_4064_sm_35_3_305_309,
     author = {{\CYRS}. {\CYRT}{\cyrr}{\cyro}{\cyrya}{\cyrn}{\cyrs}{\cyrk}{\cyri}},
     title = {{\CYRP}{\cyrr}{\cyri}{\cyrm}{\cyre}{\cyrr} {\cyrg}{\cyrl}{\cyra}{\cyrd}{\cyrk}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra}, {\cyrs}{\cyro}{\cyrp}{\cyrr}{\cyrya}{\cyrzh}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyre} {\cyrk} {\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrm}{\cyru} {\cyrn}{\cyre} {\cyrya}{\cyrv}{\cyrl}{\cyrya}{\cyre}{\cyrt}{\cyrs}{\cyrya} {\cyrs}{\cyrt}{\cyrr}{\cyro}{\cyrg}{\cyro} {\cyrn}{\cyro}{\cyrr}{\cyrm}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyrm}},
     journal = {Studia Mathematica},
     pages = {305--309},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1970},
     doi = {10.4064/sm-35-3-305-309},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-35-3-305-309/}
}