Longwall automation :a ground control perspective

Author:	Listak, Jeffrey M.
Additional Authors:	Pappas, Deno M.
Year:	1990
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:9244
Series:	Information circular / Bureau of Mines ;
Report Number:	9244
Subjects:	Ground control (Mining)
	Longwall mining--Data processing
Link:	https://hdl.handle.net/2027/mdp.39015078458372