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Problems of strong roof beds and water bearing strata in the control of longwall faces : Wilson, A H In: Ground Movement and Control Related to Coal Mining (papers to the Symposium, Illawarra, August 1986) P1–8. Pub Parkville: Aus IMM, 1986


Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
135 KB
Volume
24
Category
Article
ISSN
0148-9062

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