@article{MS_1972__131_1_a8,
     author = {{\CYRB}{\cyrl}. {\CYRS}{\cyre}{\cyrn}{\cyrd}{\cyro}{\cyrv} and {\CYRV}.{\CYRA}. {\CYRP}{\cyro}{\cyrp}{\cyro}{\cyrv}},
     title = {{\CYRT}{\cyro}{\cyrch}{\cyrn}{\cyra}{\cyrya} {\cyra}{\cyrs}{\cyri}{\cyrm}{\cyrp}{\cyrt}{\cyro}{\cyrt}{\cyri}{\cyrk}{\cyra} {\cyrn}{\cyra}{\cyri}{\cyrl}{\cyru}{\cyrch}{\cyrsh}{\cyre}{\cyrg}{\cyro} {\cyrp}{\cyrr}{\cyri}{\cyrb}{\cyrl}{\cyri}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyra}{\cyrl}{\cyrg}{\cyre}{\cyrb}{\cyrr}{\cyra}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrm}{\cyri} {\cyri} {\cyrt}{\cyrr}{\cyri}{\cyrg}{\cyro}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrm}{\cyri} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyrch}{\cyrl}{\cyre}{\cyrn}{\cyra}{\cyrm}{\cyri} {\cyrv} {\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrk}{\cyre} {{\CYRH}{\cyra}{\cyru}{\cyrs}{\cyrd}{\cyro}{\cyrr}{\cyrf}{\cyra}}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {138--147},
     publisher = {mathdoc},
     volume = {131},
     number = {1},
     year = {1972},
     zbl = {0249.41004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1972__131_1_a8/}
}