@article{MI_1990__117_190102,
     author = {{\CYRV}.{\CYRA}. {\CYRZ}{\cyro}{\cyrl}{\cyro}{\cyrt}{\cyra}{\cyrr}{\cyre}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyrishrt} and {\CYRI}.{\CYRN}. {\CYRK}{\cyrr}{\cyru}{\cyrp}{\cyrn}{\cyri}{\cyrk}},
     title = {{\CYRR}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm} {\cyrs}{\cyri}{\cyrn}{\cyrg}{\cyru}{\cyrl}{\cyrya}{\cyrr}{\cyrn}{\cyrery}{\cyrh} {\cyri}{\cyrn}{\cyrt}{\cyre}{\cyrg}{\cyrr}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrm}{\cyre}{\cyrt}{\cyro}{\cyrd}{\cyro}{\cyrm} {\cyrm}{\cyre}{\cyrh}{\cyra}{\cyrn}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrk}{\cyrv}{\cyra}{\cyrd}{\cyrr}{\cyra}{\cyrt}{\cyru}{\cyrr}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {117},
     year = {1990},
     zbl = {0725.65136},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1990__117_190102/}
}