TY  - RPRT
TI  - Damping values derived from surface-source, downhole-receiver measurements at 22 sites in the San Francisco Bay Area of central California and the San Fernando Valley of southern California
AU  - David Boore
AU  - James F. Gibbs
AU  - William B. Joyner
PY  - 2020
DO  - 10.1785/0120200225
UR  - https://pubs.usgs.gov/publication/70236889
ID  - 70236889
ER  -