Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2021_10_a8, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2670{\textendash}{\CYRM}2673,} {{\CYRF}2677{\textendash}{\CYRF}2680}}, journal = {Kvant}, pages = {17--18}, publisher = {mathdoc}, number = {10}, year = {2021}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2021_10_a8/} }
Задачи М2670–М2673, Ф2677–Ф2680. Kvant, no. 10 (2021), pp. 17-18. http://geodesic.mathdoc.fr/item/KVANT_2021_10_a8/