SIMPLE GEOMETRY OF BORDERS. CHANGING CONTROLS OF THE BULGARIAN-SERBIAN NATIONAL BORDER. ЕтноАнтропоЗум, [S. l.], v. 10, n. 10, 2014. DOI: 10.37620/EAZ14100021a. Disponível em: http://194.149.137.236/index.php/eaz/article/view/4658. Acesso em: 28 mar. 2026.