Edith University, Office of the Registrar. project baikal, Irkutsk, Russian Federation, v. 12, n. 44, p. 170–170, 2015. DOI: 10.7480/projectbaikal.44.859. Disponível em: https://projectbaikal.com/index.php/pb/article/view/859. Acesso em: 10 may. 2026.