Journal of the Southern African Institute of Mining and Metallurgy On-line version ISSN 2411-9717Print version ISSN 2225-6253
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ZHAO, H..State-of-the-art of standing supports for gob-side entry retaining technology in China. J. S. Afr. Inst. Min. Metall. [online]. 2019, vol.119, n.11, pp.891-906.
ISSN 2411-9717.