[1]
A. F. . Wetten, “Cerro Bola Andesite: New unit linked to the Miocene magmatism of the Cordillera de Olivares, San Juan, Argentina (30 ° 35´S; 69 ° 30´W).”, RAGA, vol. 60, no. 1, pp. 3-8, Mar. 2005.