ROTH, H. Roberts, Ian W.: Nicholas I and the Russian Intervention in Hungary. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 361–363, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/8066. Acesso em: 21 mai. 2024.