@article{MS_1968__117_2_a7,
     author = {{\CYRYU}.{\CYRN}. {\CYRCH}{\cyre}{\cyrr}{\cyre}{\cyrm}{\cyrn}{\cyrery}{\cyrh}},
     title = {{\CYRO} {\cyrp}{\cyro}{\cyrv}{\cyre}{\cyrd}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrk}{\cyrr}{\cyra}{\cyre}{\cyrv}{\cyrery}{\cyrh} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch} {\cyrd}{\cyrl}{\cyrya} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrv}{\cyrt}{\cyro}{\cyrr}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyro}{\cyrr}{\cyrya}{\cyrd}{\cyrk}{\cyra} {\cyrp}{\cyrr}{\cyri} {\cyrn}{\cyre}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrch}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrm} {\cyrv}{\cyro}{\cyrz}{\cyrr}{\cyra}{\cyrs}{\cyrt}{\cyra}{\cyrn}{\cyri}{\cyri} $t$},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {241--254},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1968},
     zbl = {0157.41702},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1968__117_2_a7/}
}