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Alternative methods for mining thick steeply dipping coal : Hall, C J; Willoughby, W Proc Fourth Annual Workshop Generic Mineral Technology Center, Mine Systems Design and Ground Control, Moscow, Idaho, 20–21 October 1986P101–113. Publ Blacksburg: Virginia Polytechnic Institute and State University, 1986


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
115 KB
Volume
25
Category
Article
ISSN
0148-9062

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