TY  - RPRT
TI  - A simple model for strong ground motions and response spectra
AU  - Erdal Safak
AU  - Charles Mueller
AU  - John Boatwright
PY  - 2006
DO  - 10.1002/eqe.4290160204
UR  - https://pubs.usgs.gov/publication/70013844
ID  - 70013844
ER  -