Direct measurement of longwall strata behavior :a case study

Author:	Listak, Jeffrey M.
Additional Authors:	Hill, John L., Zelanko, Joseph C.
Year:	1986
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9040
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	9040
Subjects:	Longwall mining
	Rock deformation
Link:	https://hdl.handle.net/2027/mdp.39015078489104