@article{KVANT_2005_2_a1,
     author = {L. Shibasov and Z. Shibasova},
     title = {{\CYRF}{\cyri}{\cyrb}{\cyro}{\cyrn}{\cyra}{\cyrch}{\cyrch}{\cyri}{\cyre}{\cyrv}{\cyrery} {{\CYRK}{\cyrr}{\cyro}{\cyrl}{\cyri}{\cyrk}{\cyri}}},
     journal = {Kvant},
     pages = {7--9},
     publisher = {mathdoc},
     number = {2},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2005_2_a1/}
}