TY  - RPRT
TI  - Finding Trapped Miners by Using a Prototype Seismic Recording System Made from Music-Recording Hardware
AU  - Thomas L. Pratt
PY  - 2009
DO  - 10.3133/ofr20091095
UR  - https://pubs.usgs.gov/publication/ofr20091095
ID  - ofr20091095
ER  -