@article{KVANT_2017_2_a16,
     author = {K. A. Knop},
     title = {{\CYRZ}{\cyra}{\cyrg}{\cyra}{\cyrd}{\cyrk}{\cyra} {\cyrc}{\cyre}{\cyrl}{\cyrery}{\cyrh} {\cyru}{\cyrg}{\cyrl}{\cyro}{\cyrv}},
     journal = {Kvant},
     pages = {45--50},
     publisher = {mathdoc},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2017_2_a16/}
}