LESZKA, Mirosław. Between Constantinople and Constantinople: Nicaea as a capital and its role in 13th century. Balcanica Posnaniensia. Acta et studia, [S. l.], v. 19, p. 39–49, 2012. DOI: 10.14746/bp.2012.19.4. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/1938. Acesso em: 19 apr. 2024.