Ortega-Ramírez, J. et al. 2004. Late Quaternary evolution of alluvial fans in the Playa, El Fresnal region, northern Chihuahua desert, Mexico: Palaeoclimatic implications. Geofísica Internacional. 43, 3 (jul. 2004), 445–466. DOI:https://doi.org/10.22201/igeof.00167169p.2004.43.3.971.