@article{KVANT_2020_1_a2,
     author = {N. Vasil'ev and V. Gutenmakher},
     title = {{\CYRK}{\cyrr}{\cyri}{\cyrv}{\cyrery}{\cyre} {\cyrd}{\cyrr}{\cyra}{\cyrk}{\cyro}{\cyrn}{\cyra}},
     journal = {Kvant},
     pages = {13--20},
     publisher = {mathdoc},
     number = {1},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_1_a2/}
}