Varela, Ricardo. “Geology and Rb-Sr Geochronology of Granitoids of Sierra Grande, Province of Río Negro”. Revista de la Asociación Geológica Argentina 64, no. 2 (March 30, 2009): 275-284. Accessed June 21, 2025. https://revista.geologica.org.ar/raga/article/view/1266.