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Single-entry development for longwall mining :research approach and results at Sunnyside No. 2 mine, Carbon County, Utah
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Published Year
1970-1979 (1)
Subject
Coal mines and mining (1)
Tunneling (1) *
Author
Phillips, Earl L., (1) *
Poad, Melvin E. (1)
Waddell, Galen G. (1)