@article{KVANT_2019_8_a21,
     author = {E. Epifanov},
     title = {{\CYRI}{\cyrg}{\cyrr}{\cyra} {\cyrv} {\cyrp}{\cyrr}{\cyrya}{\cyrt}{\cyrk}{\cyri}},
     journal = {Kvant},
     pages = {1},
     year = {2019},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2019_8_a21/}
}