ЮРЬЕВИЧ ТЕМЧИН, Сергей. The Development of the Written Culture in Eastern Bulgaria Before 971. Slavistica Vilnensis, [S. l.], v. 49, n. 2, p. 61–77, 2000. DOI: 10.15388/SV.2000.23120. Disponível em: https://www.journals.vu.lt/slavistica-vilnensis/article/view/23120.. Acesso em: 29 apr. 2024.