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New techniques in deep pre-sinking of mine shafts : Heever, C Proc 5th Rapid Excavation and Tunneling Conference, San Francisco, 3–7 May 1981, V2, P996–1003. Publ New York: AIME, 1981

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 111 KB
Volume: 19
Category: Article
ISSN: 0148-9062
DOI: 10.1016/0148-9062(82)91778-8

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