@article{MS_1989__180_7_a3,
     author = {{\CYRA}.{\CYRP}. {\CYRP}{\cyre}{\cyrt}{\cyru}{\cyrh}{\cyro}{\cyrv}},
     title = {{\CYRO} {\cyrz}{\cyra}{\cyrv}{\cyri}{\cyrs}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrs}{\cyrv}{\cyro}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv} {\cyrm}{\cyrn}{\cyro}{\cyrzh}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {\cyrr}{\cyra}{\cyrz}{\cyrr}{\cyrery}{\cyrv}{\cyra} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyri} {\cyro}{\cyrt} {\cyrs}{\cyrk}{\cyro}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyre}{\cyre} {\cyrp}{\cyro}{\cyrl}{\cyri}{\cyrn}{\cyro}{\cyrm}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyrh}{\cyra}{\cyru}{\cyrs}{\cyrd}{\cyro}{\cyrr}{\cyrf}{\cyro}{\cyrv}{\cyrery}{\cyrh} {\cyrp}{\cyrr}{\cyri}{\cyrb}{\cyrl}{\cyri}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrishrt}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {969--988},
     publisher = {mathdoc},
     volume = {180},
     number = {7},
     year = {1989},
     zbl = {0754.42003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1989__180_7_a3/}
}