TY  - BOOK
AU  - HARDY,Reginald H.
AU  - LEIGHTON,Frederick W.
TI  - Proceedings First Conference on Acoustic emission/microseismic activity in geologic structures and materials =: held at the Pensylvania State University, June 9-11, 1975 
T2  - Series on Rock and Soil Mechanics
SN  - 0878490175
PY  - 1977///
CY  - Aedermannsdorf
PB  - Trans Tech
UR  - http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=19269
ER  -