KAPUSTIN, P. Порог. Портал. проект байкал, Irkutsk, Russian Federation, v. 15, n. 56, p. 80–85, 2018. DOI: 10.7480/projectbaikal.56.1327. Disponível em: https://projectbaikal.com/index.php/pb/article/view/1327. Acesso em: 4 май. 2024.