KROCHMAL, Jacek. Władysław Warneńczyk in the light of Jan Długosz’s Roczniki (Yearlies). Balcanica Posnaniensia. Acta et studia, [S. l.], v. 8, p. 129–144, 1997. DOI: 10.14746/bp.1997.8.12. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/54692. Acesso em: 8 aug. 2026.