TY  - RPRT
TI  - High-resolution surface-seismic imaging techniques for NEHRP soil profile classifications and earthquake hazard assessments in urban areas
AU  - Robert A. Williams
AU  - William J. Stephenson
AU  - Jack K. Odum
AU  - David M. Worley
PY  - 1997
DO  - 10.3133/ofr97501
UR  - https://pubs.usgs.gov/publication/ofr97501
ID  - ofr97501
ER  -