VICTOROV, A. A model of karst systems of the Usturt plateau (Middle Asia). Boletín Geológico y Minero, [S. l.], v. 127, n. 1, p. 237–247, 2016. DOI: 10.21701/bolgeomin.127.1.016. Disponível em: https://bgm.revistas.csic.es/index.php/bgm/article/view/321. Acesso em: 3 may. 2025.