CZAPSKI , Maciej. Defensive system of ancient city Volubilis. State of research and new perspectives. Studia Europaea Gnesnensia, [S. l.], v. 16, n. 16, p. 513–528, 2017. DOI: 10.14746/seg.2017.16.24. Disponível em: https://pressto.amu.edu.pl/index.php/seg/article/view/30076. Acesso em: 21 grudz. 2024.