@article{MI_1987__94_189913,
     author = {{\CYRM}.{\CYRG}. {\CYRZH}{\cyru}{\cyrk}},
     title = {{\CYRS}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyri}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrishrt} {\cyra}{\cyrn}{\cyra}{\cyrl}{\cyri}{\cyrz} {\cyrerev}{\cyrf}{\cyrf}{\cyre}{\cyrk}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrs}{\cyre}{\cyrt}{\cyro}{\cyrch}{\cyrn}{\cyro}-{\cyrh}{\cyra}{\cyrr}{\cyra}{\cyrk}{\cyrt}{\cyre}{\cyrr}{\cyri}{\cyrs}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrm}{\cyre}{\cyrt}{\cyro}{\cyrd}{\cyro}{\cyrv} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrd}{\cyri}{\cyrn}{\cyra}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrk}{\cyro}{\cyrn}{\cyrt}{\cyra}{\cyrk}{\cyrt}{\cyrn}{\cyrery}{\cyrh} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {19--25},
     publisher = {mathdoc},
     volume = {94},
     year = {1987},
     zbl = {0662.73077},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1987__94_189913/}
}