@article{MS_1991__182_4_a1,
     author = {{\CYRL}.{\CYRA}. {\CYRA}{\cyrishrt}{\cyrz}{\cyre}{\cyrn}{\cyrb}{\cyre}{\cyrr}{\cyrg} and {\CYRA}.{\CYRM}. {\CYRK}{\cyrery}{\cyrt}{\cyrm}{\cyra}{\cyrn}{\cyro}{\cyrv}},
     title = {{\CYRO} {\cyrv}{\cyro}{\cyrz}{\cyrm}{\cyro}{\cyrzh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrg}{\cyro}{\cyrl}{\cyro}{\cyrm}{\cyro}{\cyrr}{\cyrf}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyrr}{\cyro}{\cyrd}{\cyro}{\cyrl}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrv} {\cyro}{\cyrb}{\cyrl}{\cyra}{\cyrs}{\cyrt}{\cyrsftsn} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt}, {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyrn}{\cyra} {\cyrs}{\cyrv}{\cyrya}{\cyrz}{\cyrn}{\cyro}{\cyrm} {\cyrk}{\cyru}{\cyrs}{\cyrk}{\cyre} {\cyre}{\cyryo} {\cyrg}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrc}{\cyrery}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {490--507},
     publisher = {mathdoc},
     volume = {182},
     number = {4},
     year = {1991},
     zbl = {0741.30002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1991__182_4_a1/}
}