TY  - RPRT
TI  - Aftershocks: Are they earthquakes or afterthoughts?
AU  - S. E. Hough
AU  - L.M. Jones
PY  - 2011
DO  - 10.1029/97eo00306
UR  - https://pubs.usgs.gov/publication/70019547
ID  - 70019547
ER  -