@article{MS_1977__145_4_a2,
     author = {{\CYRS}.{\CYRA}. {\CYRG}{\cyra}{\cyrb}{\cyro}{\cyrv}},
     title = {{\CYRU}{\cyrg}{\cyrl}{\cyro}{\cyrv}{\cyro}{\cyrishrt} {\cyrp}{\cyro}{\cyrt}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl} {\cyri} {\cyre}{\cyrg}{\cyro} {\cyrn}{\cyre}{\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyrery}{\cyre} {\cyrp}{\cyrr}{\cyri}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {490--504},
     publisher = {mathdoc},
     volume = {145},
     number = {4},
     year = {1977},
     zbl = {0372.31002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1977__145_4_a2/}
}