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Design approach for coal mine tunnels : Bieniawski, Z T; Ciniclla, W A; Unal, E Proc 5th Rqpid Excavation and Tunneling Conference, San Francisco, 3–7 May 1981, V1, P147–164. Publ New York: AIME, 1981


Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
110 KB
Volume
19
Category
Article
ISSN
0148-9062

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