@article{MP_2007_a18,
     author = {A. B. Skopenkov and A. S. Telishev},
     title = {{\CYRI} {\cyrv}{\cyrn}{\cyro}{\cyrv}{\cyrsftsn} {\cyro}~{\cyrk}{\cyrr}{\cyri}{\cyrt}{\cyre}{\cyrr}{\cyri}{\cyri} {{\CYRK}{\cyru}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro}} {\cyrp}{\cyrl}{\cyra}{\cyrn}{\cyra}{\cyrr}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyro}{\cyrv}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {159--160},
     publisher = {mathdoc},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2007_a18/}
}