@article{MI_1990__113_190099,
     author = {{\CYRL}.{\CYRA}. {\CYRU}{\cyrr}{\cyrs}{\cyru}},
     title = {$n$- {\cyra}{\cyrr}{\cyrn}{\cyrery}{\cyre} {\cyrl}{\cyru}{\cyrp}{\cyrery} {\cyrs}{\cyro} {\cyrs}{\cyrv}{\cyro}{\cyrishrt}{\cyrs}{\cyrt}{\cyrv}{\cyro}{\cyrm} {\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrt}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri}},
     journal = {Matemati\v{c}eskie issledovani\^a},
     pages = {108--118},
     publisher = {mathdoc},
     volume = {113},
     year = {1990},
     zbl = {0744.20061},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MI_1990__113_190099/}
}