TY  - RPRT
TI  - Prediction of nonlinear soil effects
AU  - S. Hartzell
AU  - L.F. Bonilla
AU  - R. A. Williams
PY  - 2004
DO  - 10.1785/012003256
UR  - https://pubs.usgs.gov/publication/70026598
ID  - 70026598
ER  -