TY  - RPRT
TI  - Response spectra from the 1989 Loma Prieta, California, earthquake regressed for site amplification, attenuation, and directivity
AU  - J.L. Boatwright
AU  - L. C. Seekins
PY  - 1997
DO  - 10.3133/ofr97858
UR  - https://pubs.usgs.gov/publication/ofr97858
ID  - ofr97858
ER  -