TY  - RPRT
TI  - Amateur radio operators help fill earthquake donut holes
AU  - David J. Wald
AU  - Vince Quitoriano
AU  - Oliver Dully
PY  - 2021
DO  - 10.1029/2021eo155013
UR  - https://pubs.usgs.gov/publication/70218289
ID  - 70218289
ER  -