Journal of geomagnetism and geoelectricity
Online ISSN : 2185-5765
Print ISSN : 0022-1392
ISSN-L : 0022-1392
International Geomagnetic Reference Field 1975
IAGA Division I Study Group, Geomagnetic Reference
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1975 Volume 27 Issue 5 Pages 437-439

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© Society of Geomagnetism and Earth, Planetary and Space Sciences
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