Early Picture Postcards of Irkutsk. project baikal, Irkutsk, Russian Federation, v. 8, n. 29-30, p. 10–13, 2011. DOI: 10.7480/projectbaikal.29-30.235. Disponível em: https://projectbaikal.com/index.php/pb/article/view/235. Acesso em: 10 may. 2026.