@article{MP_1999_a1,
     author = {A. A. Egorov},
     title = {{\CYRN}{\cyri}{\cyrk}{\cyro}{\cyrl}{\cyra}{\cyrishrt} {{\CYRB}{\cyro}{\cyrr}{\cyri}{\cyrs}{\cyro}{\cyrv}{\cyri}{\cyrch}} {{\CYRV}{\cyra}{\cyrs}{\cyri}{\cyrl}{\cyrsftsn}{\cyre}{\cyrv}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {21--28},
     publisher = {mathdoc},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1999_a1/}
}