Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2020_11_a18, title = {{\CYRF}{\cyri}{\cyrz}{\cyri}{\cyrk}{\cyro}-{\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyra}{\cyrya} {\cyro}{\cyrl}{\cyri}{\cyrm}{\cyrp}{\cyri}{\cyra}{\cyrd}{\cyra} {{\guillemotleft}{\CYRF}{\cyri}{\cyrz}{\cyrt}{\cyre}{\cyrh}{\guillemotright}}}, journal = {Kvant}, pages = {53--61}, publisher = {mathdoc}, number = {11}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2020_11_a18/} }
Физико-математическая олимпиада «Физтех». Kvant, no. 11 (2020), pp. 53-61. http://geodesic.mathdoc.fr/item/KVANT_2020_11_a18/