Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2020_1_a15, title = {{\CYRI}{\cyrz}{\cyrb}{\cyrr}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {\cyrp}{\cyro} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrk}{\cyre} {\cyri} {\cyrf}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyre}}, journal = {Kvant}, pages = {38--40}, publisher = {mathdoc}, number = {1}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2020_1_a15/} }
Избранные задачи по математике и физике. Kvant, no. 1 (2020), pp. 38-40. http://geodesic.mathdoc.fr/item/KVANT_2020_1_a15/