CRAMPTON, R. Stojanov, Ivan: Liberalnata partija văv Knjažestvo Bălgarija, 1879-1886. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 531–532, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/8578. Acesso em: 1 mai. 2025.