Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2009_6_a11, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2154{\textendash}{\CYRM}2160,} {{\CYRF}2160{\textendash}{\CYRF}2167}}, journal = {Kvant}, pages = {16--17}, publisher = {mathdoc}, number = {6}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2009_6_a11/} }
Задачи М2154–М2160, Ф2160–Ф2167. Kvant, no. 6 (2009), pp. 16-17. http://geodesic.mathdoc.fr/item/KVANT_2009_6_a11/