@article{MS_1985__168_2_a4,
     author = {{\CYRV}.{\CYRM}. {\CYRK}{\cyro}{\cyrp}{\cyrery}{\cyrt}{\cyro}{\cyrv}},
     title = {{\CYRN}{\cyre}{\cyra}{\cyrb}{\cyre}{\cyrl}{\cyre}{\cyrv}{\cyro} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyri}{\cyre} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrt}{\cyro}{\cyrch}{\cyrn}{\cyro} {\cyru}{\cyrp}{\cyro}{\cyrr}{\cyrya}{\cyrd}{\cyro}{\cyrch}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}, {\cyrv} {\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrm} {\cyrk}{\cyra}{\cyrzh}{\cyrd}{\cyra}{\cyrya} {\cyrr}{\cyra}{\cyrz}{\cyrr}{\cyre}{\cyrsh}{\cyri}{\cyrm}{\cyra}{\cyrya} $\ensuremath{\ell}$-{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyra} {\cyra}{\cyrb}{\cyre}{\cyrl}{\cyre}{\cyrv}{\cyra}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {247--266},
     publisher = {mathdoc},
     volume = {168},
     number = {2},
     year = {1985},
     zbl = {0574.06012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1985__168_2_a4/}
}