@book{3402,
	author = {Conference on Acoustic Emission/Microseismic Activity in Geologic Structures and Materials and Hardy, H. Reginald and Pennsylvania State University.},
	title = {Proceedings :},
	publisher = {Trans Tech Publications ;},
	year = {1980.},
	address = {Clausthal, Germany :},
	note = {Sponsored by the Pennsylvania State University, Rock Mechanics Laboratory.}
}