Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2020_10_a7, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} 5--8}, journal = {Kvant}, pages = {25}, publisher = {mathdoc}, number = {10}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2020_10_a7/} }
Задачи 5--8. Kvant, no. 10 (2020). http://geodesic.mathdoc.fr/item/KVANT_2020_10_a7/