Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2021_5_a10, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2650{\textendash}{\CYRM}2653,} {{\CYRF}2657{\textendash}{\CYRF}2660}}, journal = {Kvant}, pages = {27--29}, publisher = {mathdoc}, number = {5}, year = {2021}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2021_5_a10/} }
Задачи М2650–М2653, Ф2657–Ф2660. Kvant, no. 5 (2021), pp. 27-29. http://geodesic.mathdoc.fr/item/KVANT_2021_5_a10/