@article{KVANT_2021_3_a5,
     author = {A. Leonovich},
     title = {{\CYRF}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyra}$\times${\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya} ({\cyrs}{\cyrt}{\cyre}{\cyrr}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya})},
     journal = {Kvant},
     pages = {32--33},
     publisher = {mathdoc},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2021_3_a5/}
}