Comparative technical analysis of the current state of small-scale mining titles in California, Santander, Colombia. - Diaz-Muriel, Cristian; Palacio-Arcila, Alejandro; Katherine Vásquez-Carmona, Paula; Rojas-Reyes, Néstor Ricardo; Oliveros-Sepúlveda, David; Franco-Sepúlveda, Giovanni (Dyna (0012-7353), 2024)