by Eric R. Bauer
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Convergence measurements for squeeze mon...
Analysis of cutter roof failure induced ...
Equipment noise and worker exposure in t...
Ground control instrumentation
Influence of subjacent gob on longwall d...
Longwall gate road roof instability and ...
Kokuritsu Kokkai Toshokan shozō Meijiki ...
International Economic Conference, Genev...
Census of the United States: Tenth Decen...
Strength, Cuttability, and Workability o...
Yunnan Sheng zhi
Highwall Mining