SARIA, B. Pundeff, Marin: Two documents on Soviel-Bulgarian relations in november 1940. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 619–619, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/13355. Acesso em: 9 mai. 2024.