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Leakage and performance characteristics of large stoppings for room-and-pillar mining

Published Year

• 1980-1989 (1) *

Subject

• Concrete stoppings (Mining)--Airtightness (1)

Author

• Adam, Marvin E. (1)
• Agapito, Joseph F. T. (1)
• Brechtel, Carl E. (1) *
• Thimons, Edward D. (1)

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