Proceedings first conference on acoustic emission/microseismic activity in geologic structures and materials held at The Pennsylvania State University University Park, Pennsylvania, June 9-11, 1975 - Conference on Acoustic Emission/Microseismic Activity in Geologic Structures and materials (1st : 1977 : Pennsylvania); Hardy, H. Reginald (Henry Reginald), 1931- (Clausthal, Ger. Trans Tech, 1977)
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Keywords: Rocks; Geology