@article{VCHGU_2003_8_a1,
     author = {E. H. Al'brekht},
     title = {{\CYRO}{\cyrb} {\cyri}{\cyrd}{\cyre}{\cyrn}{\cyrt}{\cyri}{\cyrf}{\cyri}{\cyrk}{\cyra}{\cyrc}{\cyri}{\cyri} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrm}{\cyro}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrishrt} {\cyrn}{\cyre}{\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyrc}{\cyre}{\cyrs}{\cyrs}{\cyro}{\cyrv}},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {13--26},
     year = {2003},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_2003_8_a1/}
}