Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2020_11_a11, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} 9--16}, journal = {Kvant}, pages = {30--31}, publisher = {mathdoc}, number = {11}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2020_11_a11/} }
Задачи 9--16. Kvant, no. 11 (2020), pp. 30-31. http://geodesic.mathdoc.fr/item/KVANT_2020_11_a11/