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

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SPEARING, A.J.S.  e  HYETT, A.. In situ monitoring of primary roofbolts at underground coal mines in the USA. J. S. Afr. Inst. Min. Metall. [online]. 2014, vol.114, n.10, pp. 791-800. ISSN 2411-9717.


 


 

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