TY  - BOOK
AU  - Persen, Leif N.
TI  - Rock dynamics and geophysical exploration: introduction to stress waves in rocks
T2  - Developments in geotechnical engineering ; 8
SN  - 0-444-41284-0
U1  - D:35:(H2) L5 
PY  - 1975///
CY  - Amsterdam
PB  - Elsevier Scientific Publishing
N1  - Includes Appendis, References and Index
ER  -