@article{MI_1990__113_190094,
     author = {{\CYRS}.{\CYRG}. {\CYRM}{\cyri}{\cyrshch}{\cyre}{\cyrn}{\cyrk}{\cyro} and {\CYRA}.{\CYRM}. {\CYRSH}{\cyre}{\cyrl}{\cyre}{\cyrh}{\cyro}{\cyrv}},
     title = {{\CYRO} {\cyrp}{\cyro}{\cyrd}{\cyrt}{\cyrk}{\cyra}{\cyrn}{\cyrya}{\cyrh} {\cyri} {\cyrp}{\cyro}{\cyrd}{\cyrl}{\cyru}{\cyrp}{\cyra}{\cyrh}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {66--71},
     publisher = {mathdoc},
     volume = {113},
     year = {1990},
     zbl = {0728.53013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1990__113_190094/}
}