@article{KVANT_2019_11_a7,
     author = {A. Leonovich},
     title = {{\CYRF}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyra}+{\cyrt}{\cyre}{\cyrh}{\cyrn}{\cyri}{\cyrk}{\cyra} ({\cyrp}{\cyrr}{\cyri}{\cyrb}{\cyro}{\cyrr}{\cyrery})},
     journal = {Kvant},
     pages = {32--33},
     publisher = {mathdoc},
     number = {11},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2019_11_a7/}
}