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Journal of the Southern African Institute of Mining and Metallurgy
versión On-line ISSN 2411-9717

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HUANG, B.X et al. Hydraulic fracturing technology for improving permeability in gas-bearing coal seams in underground coal mines. J. S. Afr. Inst. Min. Metall. [online]. 2012, vol.112, n.6, pp. 485-495. ISSN 2411-9717.


 


 

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