TY  - RPRT
TI  - Digital seismograms of aftershocks of the Imperial Valley, California, earthquake of October 15, 1979
AU  - Joe B. Fletcher
AU  - Ricardo L. Zepeda
AU  - David M. Boore
PY  - 1981
DO  - 10.3133/ofr81655
UR  - https://pubs.usgs.gov/publication/ofr81655
ID  - ofr81655
ER  -