Frictional ignition of gas during a roof fall

Author:	Nagy, John.
Additional Authors:	Kawenski, Edward M.
Year:	1960
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5548
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5548
Subjects:	Mine roof bolting
	Mine explosions
	Mine gases
Link:	https://hdl.handle.net/2027/mdp.39015078528901