Journal of the Southern African Institute of Mining and Metallurgy On-line version ISSN 2411-9717Print version ISSN 2225-6253
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DU PLESSIS, J. J. L.; MARX, W. M. and NELL, C..Efficient use of energy in the ventilation and cooling of mines. J. S. Afr. Inst. Min. Metall. [online]. 2014, vol.114, n.12, pp.1033-1037.
ISSN 2411-9717.