VAN BEYNEN, PHILIP, VANDA CLAUDINO-SALES, SAULO ROBERTO DE OLIVEIRA VITAL, e DIEGO NUNES VALADARES. 2021. “KARST IN URBAN AREAS”. William Morris Davis - Revista De Geomorfologia 2 (1):1-13. //williammorrisdavis.uvanet.br/index.php/revistageomorfologia/article/view/100.