Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2022_3_a9, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} 25{\textendash}28}, journal = {Kvant}, pages = {27}, publisher = {mathdoc}, number = {3}, year = {2022}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2022_3_a9/} }
Задачи 25–28. Kvant, no. 3 (2022). http://geodesic.mathdoc.fr/item/KVANT_2022_3_a9/