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Determining the source of longwall gob gas :Lower Kittanning Coalbed, Cambria County, PA
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Published Year
1990-1999 (1)
Subject
Coal mine waste--Pennsylvania--Cambria County (1)
Firedamp--Pennsylvania--Cambria County (1)
Longwall mining--Pennsylvania--Cambria County (1)
Mine ventilation (1) *
Author
Diamond, W. P. (1)
Kravits, S. J. (1)
Ulery, J. P. (1) *
