Transformation of the Social Space of an Ethnos in Historical Retrospect: Bulgarian Communities in Russia. European Scientific e-Journal, [S. l.], n. 9, p. 57–69, 2021. DOI: 10.47451/eth2021-01-003. Disponível em: https://journals.eiid.eu/index.php/esej/article/view/202. Acesso em: 7 dec. 2025.