@article{VCHGU_1991_1_a20,
     author = {T. A. Bokareva and G. A. Sviridyuk},
     title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrp}{\cyrr}{\cyri}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyro}{\cyrs}{\cyro}{\cyrb}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyre}{\cyrishrt} {\cyrg}{\cyrl}{\cyra}{\cyrd}{\cyrk}{\cyri}{\cyrh} {\cyro}{\cyrt}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrishrt}},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {143--144},
     publisher = {mathdoc},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_1991_1_a20/}
}