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Remedial and strata replacement techniques on longwall faces :a report on the state of the art
Longwall roof support technology in the eighties :a state-of-the-art report
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Published Year
1980-1989 (2)
Subject
Ground control (Mining) (2) *
Coal mines and mining--Safety measures (1)
Longwall mining (1)
Author
Curth, Ernest A. (2) *
Dalzell, Robert S. (1)
Listak, Jeffrey M. (1)
