TY  - RPRT
TI  - A Hammer-Impact, Aluminum, Shear-Wave Seismic Source
AU  - Seth S. Haines
PY  - 2007
DO  - 10.3133/ofr20071406
UR  - https://pubs.usgs.gov/publication/ofr20071406
ID  - ofr20071406
ER  -