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Frictional ignition of gas during a roof fall
Float coal hazard in mines :a progress report
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Published Year
1960-1969 (2)
Subject
Mine explosions (2) *
Coal mines and mining--Dust control (1)
Mine gases (1)
Mine roof bolting (1)
Author
Kawenski, Edward M. (2) *
Nagy, John. (2)
Mitchell, Donald W. (1)
