@article{MO_2010_54_2_a1,
     author = {G. M. Agayan and E. V. Shikin and G. E. Shikina},
     title = {{\CYRO}{\cyrb} {\cyro}{\cyrs}{\cyro}{\cyrb}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrya}{\cyrh} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrp}{\cyro}{\cyrd}{\cyrg}{\cyro}{\cyrt}{\cyro}{\cyrv}{\cyrk}{\cyri} {\cyrp}{\cyro} {\cyru}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrm} {\cyrs}{\cyrp}{\cyre}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrya}{\cyrm}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {8--12},
     publisher = {mathdoc},
     volume = {54},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2010_54_2_a1/}
}