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Location and support of tunnels in deep-level gold mines : Wagner, H; Godfrey, J B Paper to Tunnelling '76 conference, London, 1–5 March, 1976, P341–347, disc P367–368


Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
125 KB
Volume
15
Category
Article
ISSN
0148-9062

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