4Ralph W Marsden,J Richard Lucas.Specialized Underground Extraction Systems[A].SME Mining Engineering Handbook(Vol 2).Cummins:Given,1973:2-29.
5Cao Ping,Peter Guss mann.3D Slope Stability Analysis with Kinematical Element Technique[A].Central South University of Technology.Stuttgart,Germany:Institute of Geo-techniques,University of Stuttgart.Jun 1999.
6Brierley J A, Brierley C L. Present and future commercial application of biohydremetallurgy[J]. Hydrometallurgy, 2001 (59): 233-239.
7Escoba B J, Jedlicki E & Vargas T, A method for evaluating the proportion of free and attached bacteria in the bio-leaching of chalcopyfite with thiobacillus ferrooxidans[J]. Hydrometallurgy, 1996(40): 1-10.