Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2019_4_a8, title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2554{\textendash}{\CYRM}2557,} {{\CYRF}2561{\textendash}{\CYRF}2564}}, journal = {Kvant}, pages = {14--15}, publisher = {mathdoc}, number = {4}, year = {2019}, language = {ru}, url = {https://geodesic-test.mathdoc.fr/item/KVANT_2019_4_a8/} }
Задачи М2554–М2557, Ф2561–Ф2564. Kvant, no. 4 (2019), pp. 14-15. https://geodesic-test.mathdoc.fr/item/KVANT_2019_4_a8/