DENIZE, Eugen. The crusade of Varna and the relations between Jan Hunyadi and Alfons V of Aragon, King of Naples. Reality and ideology. Balcanica Posnaniensia. Acta et studia, [S. l.], v. 8, p. 71–82, 1997. DOI: 10.14746/bp.1997.8.7. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/54688. Acesso em: 8 aug. 2026.