METREWELI, Roin. Der byzantinisch-bulgarische Krieg 1014-1018 und Georgien. Georgica, [S. l.], v. 11, p. 60–62, 1988. Disponível em: https://georgica.journals.humanities.tsu.ge/index.php/georgica/article/view/10183. Acesso em: 7 feb. 2026.