Maturana Contardo, H., Higueras Higueras, P. L., Guevara, S., Oyarzun Muñoz, R., Oyarzun Muñoz, J., & Lillo Ramos, F. J. (2006). The as-contaminated elqui river basin: A long lasting perspective (1975-1995) covering the initiation and development of au-cu-as mining in the high andes of northern Chile.

Maturana Contardo, Hugo, Pablo León Higueras Higueras, S. Guevara, Roberto Oyarzun Muñoz, Jorge Oyarzun Muñoz, e Francisco Javier Lillo Ramos. The As-contaminated Elqui River Basin: A Long Lasting Perspective (1975-1995) Covering the Initiation and Development of Au-cu-as Mining in the High Andes of Northern Chile. 2006.

Maturana Contardo, Hugo, et al. The As-contaminated Elqui River Basin: A Long Lasting Perspective (1975-1995) Covering the Initiation and Development of Au-cu-as Mining in the High Andes of Northern Chile. 2006.