@article{MS_1974__135_2_a4,
     author = {{\CYRG}.{\CYRI}. {\CYRO}{\cyrl}{\cyrsftsn}{\cyrsh}{\cyra}{\cyrn}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}},
     title = {{\CYRS}{\cyrp}{\cyrl}{\cyre}{\cyrt}{\cyra}{\cyryu}{\cyrshch}{\cyri}{\cyre} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyrery} {\cyri} {\cyrd}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyrn}{\cyri}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyre} {\cyrs}{\cyre}{\cyrr}{\cyri}{\cyri} {\cyrv} {\cyrk}{\cyrl}{\cyra}{\cyrs}{\cyrs}{\cyre} {\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyrs}{\cyrt}{\cyra}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrp}{\cyro}{\cyrl}{\cyrn}{\cyro}{\cyrishrt} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyrery} {\cyrm}{\cyra}{\cyrt}{\cyrr}{\cyri}{\cyrc} {\cyrn}{\cyra}{\cyrd} {\cyrl}{\cyro}{\cyrk}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro} {\cyrk}{\cyro}{\cyrm}{\cyrp}{\cyra}{\cyrk}{\cyrt}{\cyrn}{\cyro}{\cyrishrt} {\cyra}{\cyrl}{\cyrg}{\cyre}{\cyrb}{\cyrr}{\cyro}{\cyrishrt} {\cyrs} {\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyre}{\cyrm}, {\cyri}{\cyrn}{\cyrd}{\cyru}{\cyrc}{\cyri}{\cyrr}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyrs} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrp}{\cyro}{\cyrd}{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {218--253},
     publisher = {mathdoc},
     volume = {135},
     number = {2},
     year = {1974},
     zbl = {0298.22016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1974__135_2_a4/}
}