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Mitigating destructive longwall bumps through conventional gate entry design / by Alan A. Campoli ... [et al.].

Contributor(s): Series: Report of investigations (United States. Bureau of Mines) ; 9325.Publication details: Pgh. [i.e. Pittsburgh] PA : United States Dept. of the Interior, Bureau of Mines, 1990.Description: ii, 38 p. : illSubject(s):
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