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Longwall mining with a German coal planer : Pocahontas No. 3 coalbed, Keystone, W. Va.
Longwall mining with a German coal planer : Pocahontas No. 3 coalbed, Keystone, W. Va.
Longwall mining with a German coal planer : Pocahontas No. 3 coalbed, Keystone, W. Va.
Harper, David S. (author) / Carman, C. O. (author)
1963
18 S
Ill
Digital preservation by Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
Book
English
Pocahontas region mining methods
Engineering Index Backfile | 1909
|Dynamic Distribution of Longwall Mining-Induced Voids in Overlying Strata of a Coalbed
Online Contents | 2016
|