Guerrero F, Herrera M, Ramírez M. Search of Circular Surface Landforms with Negative Topography Associated with Geological Processes in a Physical Geography Framework within the Province of Pichincha, Ecuador. Rev. geogr. Chile, Terra Australis [Internet]. 2024Aug.14 [cited 2024Sep.19];60(1). Available from: https://www.revistaterraaustralis.cl/index.php/rgch/article/view/190