@article{10_4064_sm_13_2_233_243,
     author = {{\CYRM}. {\CYRA}{\cyrl}{\cyrsftsn}{\cyrt}{\cyrm}{\cyra}{\cyrn}},
     title = {{\CYRO}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrishrt} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {{\CYRM}{\cyra}{\cyrz}{\cyru}{\cyrr}{\cyra}-{\CYRO}{\cyrr}{\cyrl}{\cyri}{\cyrch}{\cyra}} {\cyri}{\cyrz} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {{\CYRS}{\cyru}{\cyrm}{\cyrm}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyrya}}},
     journal = {Studia Mathematica},
     pages = {233--243},
     year = {1953},
     volume = {13},
     number = {2},
     doi = {10.4064/sm-13-2-233-243},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-13-2-233-243/}
}