Giambiagi, L., M. Tunik, V. A. Ramos, and E. Godoy. “The High Andean Cordillera of Central Argentina and Chile Along the Piuquenes Pass-Cordon Del Portillo Transect: Darwin’s Pioneering Observations Compared With Modern Geology”. Revista De La Asociación Geológica Argentina, vol. 64, no. 1, Mar. 2009, pp. 43-54, https://revista.geologica.org.ar/raga/article/view/1293.