Trumbull, R.B; Wittenbrink, R; Hahne, K; Emmermann, R; Büsch, W; Gerstenberger, H; Siebel, W (March 1999). "Evidence for Late Miocene to Recent contamination of arc andesites by crustal melts in the Chilean Andes (25–26°S) and its geodynamic implications". Journal of South American Earth Sciences. 12 (2): 140. Bibcode:1999JSAES..12..135T. doi:10.1016/S0895-9811(99)00011-5.
Trumbull, R.B; Wittenbrink, R; Hahne, K; Emmermann, R; Büsch, W; Gerstenberger, H; Siebel, W (March 1999). "Evidence for Late Miocene to Recent contamination of arc andesites by crustal melts in the Chilean Andes (25–26°S) and its geodynamic implications". Journal of South American Earth Sciences. 12 (2): 140. Bibcode:1999JSAES..12..135T. doi:10.1016/S0895-9811(99)00011-5.
Stratabound ore deposits in the Andes. L. Fontboté, Multiciencias, Unesco. Berlin: Springer-Verlag. 1990. p. 698. ISBN978-3-642-88282-1. OCLC610340030.{{cite book}}: CS1 maint: others (link)