VALJAVEC, F. Sipkov, Ivan - Gsovski, Vladimir [Hrsg.]: Legal Sources and Bibliography of Bulgaria. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 512–513, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/13246. Acesso em: 8 mai. 2024.