School in Ryazan. Competition. project baikal, Irkutsk, Russian Federation, v. 19, n. 74, p. 6–7, 2023. DOI: 10.51461/pb.74.03. Disponível em: https://projectbaikal.com/index.php/pb/article/view/1982. Acesso em: 10 may. 2026.