Field Demonstration of Two Pneumatic Backfilling Technologies

Author:	Dyni, Robert C.
Additional Authors:	Burnett, Mackenzie
Year:	1995
Document Type:	N/A
Series:	Report of investigations (United States. Bureau of Mines)
Report Number:	Bureau of Mines Report of Investigations 9550
Subjects:	Mine filling.
	Mine filling -- Pennsylvania.
Link:	https://digital.library.unt.edu/ark:/67531/metadc304119/