@article{VCHGU_1991_1_a9,
     author = {N. B. Medvedeva},
     title = {{\CYRO} {\cyrr}{\cyra}{\cyrz}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrc}{\cyre}{\cyrn}{\cyrt}{\cyrr}{\cyra} {\cyri} {\cyrf}{\cyro}{\cyrk}{\cyru}{\cyrs}{\cyra} {\cyrp}{\cyro} {\cyrd}{\cyri}{\cyra}{\cyrg}{\cyrr}{\cyra}{\cyrm}{\cyrm}{\cyre} {{\CYRN}{\cyrsftsn}{\cyryu}{\cyrt}{\cyro}{\cyrn}{\cyra}:}},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {97--100},
     year = {1991},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_1991_1_a9/}
}