@misc{KVANT_2020_1_a0,
     title = {{\CYRK} 50-{\cyrl}{\cyre}{\cyrt}{\cyri}{\cyryu} {{\guillemotleft}{\CYRK}{\cyrv}{\cyra}{\cyrn}{\cyrt}{\cyra}{\guillemotright}}},
     journal = {Kvant},
     pages = {2--3},
     publisher = {mathdoc},
     number = {1},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2020_1_a0/}
}