@article{MS_1987__171_1_a1,
     author = {{\CYRA}.{\CYRN}. {\CYRD}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrsh}{\cyrn}{\cyri}{\cyrk}{\cyro}{\cyrv}},
     title = {{\CYRU}{\cyrn}{\cyri}{\cyrv}{\cyre}{\cyrr}{\cyrs}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyre} {\cyrm}{\cyre}{\cyrn}{\cyrg}{\cyre}{\cyrr}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyre} {\cyrk}{\cyro}{\cyrm}{\cyrp}{\cyra}{\cyrk}{\cyrt}{\cyrery} {\cyri} {\cyru}{\cyrn}{\cyri}{\cyrv}{\cyre}{\cyrr}{\cyrs}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyre} {\cyro}{\cyrt}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {121--139},
     publisher = {mathdoc},
     volume = {171},
     number = {1},
     year = {1987},
     zbl = {0622.54026},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1987__171_1_a1/}
}