Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2009_5_a13, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2146{\textendash}{\CYRM}2153,} {{\CYRF}2153{\textendash}{\CYRF}2159}}, journal = {Kvant}, pages = {19--20}, publisher = {mathdoc}, number = {5}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2009_5_a13/} }
Задачи М2146–М2153, Ф2153–Ф2159. Kvant, no. 5 (2009), pp. 19-20. http://geodesic.mathdoc.fr/item/KVANT_2009_5_a13/