TY  - RPRT
TI  - Fourier power spectra of the geomagnetic field for circular paths on the Earth's surface.
AU  - L.R. Alldredge
AU  - E.R. Benton
PY  - 1986
UR  - https://pubs.usgs.gov/publication/70014590
ID  - 70014590
ER  -