Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2011_1_a13, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2206{\textendash}{\CYRM}2213,} {{\CYRF}2213{\textendash}{\CYRF}2219}}, journal = {Kvant}, pages = {20--21}, publisher = {mathdoc}, number = {1}, year = {2011}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2011_1_a13/} }
Задачи М2206–М2213, Ф2213–Ф2219. Kvant, no. 1 (2011), pp. 20-21. http://geodesic.mathdoc.fr/item/KVANT_2011_1_a13/