FERJANČIĆ, B.; MAKSIMOVIĆ, L. Sava Nemanjić and Serbia between Epiros and Nicaea. Balcanica - Annual of the Institute for Balkan Studies, [S. l.], n. XLV, p. 37–54, 2014. DOI: 10.2298/BALC1445037F. Disponível em: https://balcanica.rs/index.php/journal/article/view/241. Acesso em: 25 jun. 2024.