1. R.J. Roman, B.R. Benner, and G.W. Becker:Trans. AIME, 1974, vol. 256, pp. 247–52.
2. D.G. Chae and ME. Wadsworth:In Situ Recovery of Minerals, K.R. Coyne and J.B. Hiskey, eds., Engineering Foundation, New York, NY, 1989, pp. 1–21.
3. J.A. Harris:Proc. Australas. Inst. Min. Metall., 1969, No. 230, pp. 81-92.
4. L.M. Cathles and J.A. Apps:Metall. Trans. B, 1975, vol. 6B, pp. 617–24.
5. L.M. Cathles and W.J. Schlitt:Leaching and Recovering Copper from As-Mined Materials, SME-AIME, New York, NY, 1980, pp. 9–27.