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Comparisons between cross-measure boreholes and surface gob holes

Published Year

• 1980-1989 (1)

Subject

• Boring--Pennsylvania--Ebensburg Region (1)
• Coalbed methane drainage--Pennsylvania--Ebensburg Region--Testing (1)
• Longwall mining--Pennsylvania--Ebensburg Region (1) *

Author

• Cervik, Joseph. (1)
• Goodman, Tobias W. (1) *

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