POLYVYANNYY, Dmitry. Dynasticity in the Second Bulgarian Tsardom and its Manifestations in Medieval History Writing. Studia Ceranea, Poland, v. 9, p. 351–365, 2019. DOI: 10.18778/2084-140X.09.19. Disponível em: https://czasopisma.uni.lodz.pl/sceranea/article/view/6661. Acesso em: 7 aug. 2026.