Intervisibility among the thousand mounds of the Yambol province. Research Announcements "Heritage BG", [S. l.], n. 7, p. 54–61, 2025. DOI: 10.58894/AR-HBg.2024.7.54-61. Disponível em: https://periodicals.uni-sofia.bg/index.php/AR-NBg/article/view/1309. Acesso em: 10 mar. 2026.