The Geomagnetic Field: 1970-1990 and the NASA Candidate Models for DGRF1985 and IGRF1990.

R. A. Langel(Goddard Space Flight Center), R. T. Baldwin, Terence J. Sabaka(Goddard Space Flight Center)
Journal of geomagnetism and geoelectricity
January 1, 1992
Cited by 43


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