@article{MS_1989__180_3_a2,
     author = {{\CYRV}.-{\CYRB}.{\CYRK}. {\CYRR}{\cyro}{\cyrg}{\cyro}{\cyrv}},
     title = {{\CYRP}{\cyrr}{\cyre}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyre} {{\CYRF}{\cyru}{\cyrr}{\cyrsftsn}{\cyre}-{\CYRM}{\cyre}{\cyrl}{\cyrl}{\cyri}{\cyrn}{\cyra}-{\CYRU}{\cyri}{\cyrt}{\cyrt}{\cyre}{\cyrk}{\cyre}{\cyrr}{\cyra}} {\cyrn}{\cyra} {\cyro}{\cyrr}{\cyri}{\cyrs}{\cyrf}{\cyre}{\cyrr}{\cyra}{\cyrh} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrr}{\cyro}{\cyrd}{\cyrn}{\cyrery}{\cyrh} {\cyrp}{\cyrs}{\cyre}{\cyrv}{\cyrd}{\cyro}{\cyrr}{\cyri}{\cyrm}{\cyra}{\cyrn}{\cyro}{\cyrv}{\cyrery}{\cyrh} {\cyrs}{\cyri}{\cyrm}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv} {\cyrr}{\cyra}{\cyrn}{\cyrg}{\cyra} 1},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {336--353},
     publisher = {mathdoc},
     volume = {180},
     number = {3},
     year = {1989},
     zbl = {0683.43005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1989__180_3_a2/}
}