1. D.A. Pazour, “Lo Aguirre Producing Copper Cathodes,” World Mining, August 1981, pp. 38–40.
2. E.M. Domic, “Lo Aguirre’s Challenge for Scaling-Up New Technology in Copper Hydrometallurgy: From Concept to Industrial Application,” 110th AIME Annual Meeting; Chicago, Illinois, February 22–27, 1981, (paper TMS-A81-46).
3. P.H. Johnson, U.S. Patent 4,017,309 “Thin-Layer Leaching Method.”
4. “Firms Combine Forces for Mineral Extraction,” Mining Journal, November 13, 1981, p. 375.
5. E.M. Domic, and G. Alvarez, “Desarrollo y Perspectivas de la Soc. Minera La Cascada, Ltda.,” 1er. Congreso de la Mineria de Tarapacá, lquique, Chile, November 4–5, 1980.