@article{MS_1969__120_4_a5,
     author = {{\CYRE}.{\CYRA}. {\CYRG}{\cyro}{\cyrr}{\cyri}{\cyrn} and {\CYRV}.{\CYRYA}. {\CYRL}{\cyri}{\cyrn}},
     title = {{\CYRA}{\cyrl}{\cyrg}{\cyre}{\cyrb}{\cyrr}{\cyra}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyre} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrs} {\cyrn}{\cyre}{\cyrp}{\cyrr}{\cyre}{\cyrr}{\cyrery}{\cyrv}{\cyrn}{\cyrery}{\cyrm}{\cyri} {\cyrk}{\cyro}{\cyrerev}{\cyrf}{\cyrf}{\cyri}{\cyrc}{\cyri}{\cyre}{\cyrn}{\cyrt}{\cyra}{\cyrm}{\cyri} {\cyri} {\cyrn}{\cyre}{\cyrk}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyrery}{\cyre} {\cyrv}{\cyro}{\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrery} {\cyra}{\cyrl}{\cyrg}{\cyre}{\cyrb}{\cyrr}{\cyra}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyrk}{\cyro}{\cyrs}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {579--610},
     publisher = {mathdoc},
     volume = {120},
     number = {4},
     year = {1969},
     zbl = {0211.54905},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1969__120_4_a5/}
}