Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2007_4_a15, author = {B. Frenkin}, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {LXX} {{\CYRM}{\cyro}{\cyrs}{\cyrk}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyro}{\cyrishrt}} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyro}{\cyrl}{\cyri}{\cyrm}{\cyrp}{\cyri}{\cyra}{\cyrd}{\cyrery}}, journal = {Kvant}, pages = {47--49}, publisher = {mathdoc}, number = {4}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2007_4_a15/} }
B. Frenkin. Задачи LXX Московской математической олимпиады. Kvant, no. 4 (2007), pp. 47-49. http://geodesic.mathdoc.fr/item/KVANT_2007_4_a15/