@article{MI_1989__109_190195,
     author = {{\CYRA}.{\CYRI}. {\CYRP}o{\cyrsh}{\cyrt}{\cyra}{\cyrr}{\cyru} and {\CYRN}.{\CYRV}. {\CYRP}{\cyrr}{\cyro}{\cyrd}{\cyra}{\cyrn}},
     title = {{\CYRV}{\cyre}{\cyrr}{\cyro}{\cyrya}{\cyrt}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrn}{\cyrery}{\cyrishrt} {\cyra}{\cyrn}{\cyra}{\cyrl}{\cyro}{\cyrg} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {\cyro} {\cyrc}{\cyre}{\cyrn}{\cyrt}{\cyrr}{\cyre} {\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyra}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {105--112},
     publisher = {mathdoc},
     volume = {109},
     year = {1989},
     zbl = {0697.60012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1989__109_190195/}
}