@article{MP_2006_a9,
     author = {A. M. Petrunin and S. E. Rukshin},
     title = {{\CYRU}{\cyrn}{\cyri}{\cyrk}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrs}{\cyro}{\cyrs}{\cyrt}{\cyra}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrf}{\cyri}{\cyrg}{\cyru}{\cyrr}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {161--175},
     publisher = {mathdoc},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2006_a9/}
}