TY  - RPRT
TI  - The Imperial Valley, California, earthquake, October 15, 1979; time dependent response spectrum plots
AU  - Virgilio Perez
PY  - 1982
DO  - 10.3133/ofr82183
UR  - https://pubs.usgs.gov/publication/ofr82183
ID  - ofr82183
ER  -