"Perspektiva" Bureau: an Un-round Number of the Anniversary. project baikal, Irkutsk, Russian Federation, v. 9, n. 31, p. 152–155, 2012. DOI: 10.7480/projectbaikal.31.269. Disponível em: https://projectbaikal.com/index.php/pb/article/view/269. Acesso em: 10 may. 2026.