@article{KVANT_2019_11_a0,
     author = {I. Esipov},
     title = {{\CYRZ}{\cyrv}{\cyru}{\cyrk} {\cyrv} {\cyrk}{\cyro}{\cyrs}{\cyrm}{\cyro}{\cyrs}{\cyre}.
},
     journal = {Kvant},
     pages = {2--8},
     publisher = {mathdoc},
     number = {11},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2019_11_a0/}
}