@article{KVANT_2008_1_a13,
     author = {I. Akulich},
     title = {{\CYRP}{\cyrr}{\cyri}{\cyrz}{\cyrr}{\cyra}{\cyrk} {{\CYRL}{\cyre}{\cyro}{\cyrn}{\cyra}{\cyrr}{\cyrd}{\cyro}}},
     journal = {Kvant},
     pages = {26--29},
     publisher = {mathdoc},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2008_1_a13/}
}