@article{MP_2007_a4,
     author = {Yu. M. Burman},
     title = {{\CYRM}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyrch}{\cyrl}{\cyre}{\cyrn} {{\CYRT}{\cyra}{\cyrt}{\cyrt}{\cyra}} {\cyri} {\cyrm}{\cyro}{\cyrd}{\cyre}{\cyrl}{\cyrsftsn} {\cyrs}{\cyrl}{\cyru}{\cyrch}{\cyra}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrk}{\cyrl}{\cyra}{\cyrs}{\cyrt}{\cyre}{\cyrr}{\cyro}{\cyrv}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {47--60},
     publisher = {mathdoc},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2007_a4/}
}