@misc{KVANT_2018_4_a21,
     title = {{\CYRG}{\cyrd}{\cyre} {\cyro}{\cyrsh}{\cyri}{\cyrb}{\cyrk}{\cyra}?},
     journal = {Kvant},
     pages = {54--57},
     year = {2018},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2018_4_a21/}
}