TY  - RPRT
TI  - Latitude dependence of the angular dispersion of the geomagnetic field
AU  - Allan Cox
PY  - 1970
DO  - 10.1111/j.1365-246x.1970.tb06069.x
UR  - https://pubs.usgs.gov/publication/70226470
ID  - 70226470
ER  -