PENCHEVA, E. Bone and horn artefacts from the medieval settlement in Petrova Niva Locality, Sboryanovo Archaeological Reserve. Contributions to Bulgarian Archaeology | Приноси към българската археология, [S. l.], v. 11, p. 71–133, 2021. DOI: 10.53250/cba11.71-133. Disponível em: https://www.publications.naim.bg/index.php/CBA/article/view/202. Acesso em: 7 oct. 2026.