Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2005_1_a7, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri}}, journal = {Kvant}, pages = {26}, publisher = {mathdoc}, number = {1}, year = {2005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2005_1_a7/} }
Задачи. Kvant, no. 1 (2005). http://geodesic.mathdoc.fr/item/KVANT_2005_1_a7/