TY  - RPRT
TI  - Inducing in situ, nonlinear soil response applying an active source
AU  - P.A. Johnson
AU  - P. Bodin
AU  - J. Gomberg
AU  - F. Pearce
AU  - Z. Lawrence
AU  - F.-Y. Menq
PY  - 2009
DO  - 10.1029/2008jb005832
UR  - https://pubs.usgs.gov/publication/70034691
ID  - 70034691
ER  -