Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2017_10_a18, title = {{\CYRG}{\cyrd}{\cyre} {\cyro}{\cyrsh}{\cyri}{\cyrb}{\cyrk}{\cyra}?}, journal = {Kvant}, pages = {53--55}, publisher = {mathdoc}, number = {10}, year = {2017}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2017_10_a18/} }
Где ошибка?. Kvant, no. 10 (2017), pp. 53-55. http://geodesic.mathdoc.fr/item/KVANT_2017_10_a18/