Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2021_9_a11, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2666{\textendash}{\CYRM}2669,} {{\CYRF}2673{\textendash}{\CYRF}2676}}, journal = {Kvant}, pages = {16--17}, publisher = {mathdoc}, number = {9}, year = {2021}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2021_9_a11/} }
Задачи М2666–М2669, Ф2673–Ф2676. Kvant, no. 9 (2021), pp. 16-17. http://geodesic.mathdoc.fr/item/KVANT_2021_9_a11/