Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2009_3_a14, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2131{\textendash}{\CYRM}2138,} {{\CYRF}2138{\textendash}{\CYRF}2144}}, journal = {Kvant}, pages = {25--26}, publisher = {mathdoc}, number = {3}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2009_3_a14/} }
Задачи М2131–М2138, Ф2138–Ф2144. Kvant, no. 3 (2009), pp. 25-26. http://geodesic.mathdoc.fr/item/KVANT_2009_3_a14/