@article{KVANT_2019_7_a19,
     author = {A. Rusanov},
     title = {{\CYRG}{\cyrr}{\cyra}{\cyrn}-{\cyrp}{\cyrr}{\cyri} {\cyrv} {{\CYRM}{\cyro}{\cyrs}{\cyrk}{\cyrv}{\cyre}}},
     journal = {Kvant},
     pages = {65},
     year = {2019},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2019_7_a19/}
}