Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2017_2_a8, author = {D. V. Prokopenko}, title = {{\CYRE}{\cyrshch}{\cyre} {\cyro}{\cyrd}{\cyrn}{\cyro} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2401}}, journal = {Kvant}, pages = {50--51}, publisher = {mathdoc}, number = {2}, year = {2017}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2017_2_a8/} }
D. V. Prokopenko. Еще одно решение задачи М2401. Kvant, no. 2 (2017), pp. 50-51. http://geodesic.mathdoc.fr/item/KVANT_2017_2_a8/