@article{KVANT_2011_2_a4,
     author = {S. Tabachnikov and D. Fuchs},
     title = {{\CYRN}{\cyre}{\cyrv}{\cyro}{\cyrz}{\cyrm}{\cyro}{\cyrzh}{\cyrn}{\cyrery}{\cyre} {\cyrz}{\cyra}{\cyrm}{\cyro}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyrya}},
     journal = {Kvant},
     pages = {19--26},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2011_2_a4/}
}