ОДНОРОЖЕНКО, Олег. The issue of dating a Polish-Lithuanian „heraldic gap”. Średniowiecze Polskie i Powszechne, [S. l.], v. 4, p. 238–250, 2012. DOI: 10.31261/SPiP.2012.08.12. Disponível em: https://journals.us.edu.pl/index.php/SPP/article/view/21995. Acesso em: 15 nov. 2026.