@article{MS_1991__181_2_a3,
     author = {{\CYRYA}.{\CYRL}. {\CYRU}{\cyrm}{\cyra}{\cyrn}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}},
     title = {{\CYRN}{\cyre}{\cyro}{\cyrb}{\cyrh}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyrery}{\cyre} {\cyri} {\cyrd}{\cyro}{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyro}{\cyrch}{\cyrn}{\cyrery}{\cyre} {\cyru}{\cyrs}{\cyrl}{\cyro}{\cyrv}{\cyri}{\cyrya} {\cyrt}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrg}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrerev}{\cyrk}{\cyrv}{\cyri}{\cyrv}{\cyra}{\cyrl}{\cyre}{\cyrn}{\cyrt}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrt}{\cyrr}{\cyre}{\cyrh}{\cyrm}{\cyre}{\cyrr}{\cyrn}{\cyrery}{\cyrh} {\cyrd}{\cyri}{\cyrn}{\cyra}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm} {{\CYRM}{\cyro}{\cyrr}{\cyrs}{\cyra}-{\CYRS}{\cyrm}{\cyre}{\cyrishrt}{\cyrl}{\cyra}} {\cyrs} {\cyrk}{\cyro}{\cyrn}{\cyre}{\cyrch}{\cyrn}{\cyrery}{\cyrm} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyro}{\cyrm} {\cyro}{\cyrs}{\cyro}{\cyrb}{\cyrery}{\cyrh} {\cyrt}{\cyrr}{\cyra}{\cyre}{\cyrk}{\cyrt}{\cyro}{\cyrr}{\cyri}{\cyrishrt}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {212--239},
     publisher = {mathdoc},
     volume = {181},
     number = {2},
     year = {1991},
     zbl = {0717.58033},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1991__181_2_a3/}
}