@article{MP_2007_3_11_a10, author = {M. N. Istomina and A. B. Pevnyi}, title = {{\CYRO} {\cyrr}{\cyra}{\cyrs}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrk} {\cyrn}{\cyra} {\cyrs}{\cyrf}{\cyre}{\cyrr}{\cyre} {\cyri} {\cyrf}{\cyrr}{\cyre}{\cyrishrt}{\cyrm}{\cyre} {{\CYRM}{\cyre}{\cyrr}{\cyrs}{\cyre}{\cyrd}{\cyre}{\cyrs}{\textendash}{\CYRB}{\cyre}{\cyrn}{\cyrc}}}, journal = {Matematicheskoe Prosveshchenie}, pages = {105--112}, year = {2007}, volume = {Ser. 3, 11}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2007_3_11_a10/} }