TY  - RPRT
TI  - A compressed marine data set for geomagnetic field modeling
AU  - Langel, R. A.
AU  - Baldwin, R. T.
AU  - Ridgway, J. R.
AU  - Davis, W. Minor
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19910030392
ID  - 19910030392
ER  -