Prediction of surface deformations over longwall panels in the Northern Appalachian coalfield / by Vladimir Adamek, Paul W. Jeran, and Michael A. Trevits.
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Format: | Government Document Book |
Language: | English |
Published: |
[Pittsburgh, Pa.] :
U.S. Dept. of the Interior, Bureau of Mines,
[1987]
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Series: | Report of investigations (United States. Bureau of Mines) ;
9142. |
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