PRINZING, G. Majeska, George P.: Russian Travelers to Constantinople in the Fourteenth and Fifteenth Centuries. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 529–533, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/9016. Acesso em: 21 mai. 2024.