@article{MI_1989__106_190044,
     author = {{\CYRI}.{\CYRU}. {\CYRB}{\cyrr}{\cyro}{\cyrn}{\cyrsh}{\cyrt}{\cyre}{\cyrishrt}{\cyrn} and {\CYRA}.{\CYRYA}. {\CYRK}{\cyro}{\cyrp}{\cyra}{\cyrn}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}},
     title = {{\CYRT}{\cyre}{\cyro}{\cyrr}{\cyre}{\cyrm}{\cyrery} {\cyro} {\cyrg}{\cyrl}{\cyra}{\cyrd}{\cyrk}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyra}{\cyrs}{\cyri}{\cyrm}{\cyrp}{\cyrt}{\cyro}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrf}{\cyra}{\cyrz}{\cyrery}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {12--20},
     publisher = {mathdoc},
     volume = {106},
     year = {1989},
     zbl = {0705.58030},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1989__106_190044/}
}