VAIMAN, D.I. Bulgarians in Russia at the beginning of the XXI century (based on Population Censuses of 2002 - 2010). Perm Federal Research Centre Journal, [S. l.], n. 1, p. 80–87, 2020. DOI: 10.7242/2658-705X/2020.1.8. Disponível em: https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2020n1p8. Acesso em: 29 may. 2026.