@article{MS_1987__174_3_a5,
     author = {{\CYRD}.{\CYRI}. {\CYRP}{\cyra}{\cyrn}{\cyryu}{\cyrsh}{\cyre}{\cyrv}},
     title = {{\CYRO}{\cyrr}{\cyrb}{\cyri}{\cyrt}{\cyrery} {\cyrn}{\cyra}{\cyri}{\cyrb}{\cyro}{\cyrl}{\cyrsftsn}{\cyrsh}{\cyre}{\cyrishrt} {\cyrr}{\cyra}{\cyrz}{\cyrm}{\cyre}{\cyrr}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrr}{\cyra}{\cyrz}{\cyrr}{\cyre}{\cyrsh}{\cyri}{\cyrm}{\cyrery}{\cyrh} {\cyrp}{\cyro}{\cyrd}{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp} {\cyrr}{\cyre}{\cyrd}{\cyru}{\cyrk}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyrh} {\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp} {\cyri} {\cyrr}{\cyre}{\cyrd}{\cyru}{\cyrk}{\cyrc}{\cyri}{\cyrya} {\cyrd}{\cyrl}{\cyrya} {U-{\cyri}{\cyrn}{\cyrv}{\cyra}{\cyrr}{\cyri}{\cyra}{\cyrn}{\cyrt}{\cyro}{\cyrv}}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {371--382},
     publisher = {mathdoc},
     volume = {174},
     number = {3},
     year = {1987},
     zbl = {0628.20034},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1987__174_3_a5/}
}