@article{MS_1971__126_4_a7,
     author = {{\CYRI}.{\CYRC}. {\CYRG}{\cyro}{\cyrh}{\cyrb}{\cyre}{\cyrr}{\cyrg} and {\CYRE}.{\CYRI}. {\CYRS}{\cyri}{\cyrg}{\cyra}{\cyrl}},
     title = {{\CYRO}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyrn}{\cyro}{\cyre} {\cyro}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {\cyro} {\cyrl}{\cyro}{\cyrg}{\cyra}{\cyrr}{\cyri}{\cyrf}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrm} {\cyrv}{\cyrery}{\cyrch}{\cyre}{\cyrt}{\cyre} {\cyri} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {{\CYRR}{\cyru}{\cyrsh}{\cyre}}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {607--629},
     publisher = {mathdoc},
     volume = {126},
     number = {4},
     year = {1971},
     zbl = {0254.47046},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1971__126_4_a7/}
}