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True Magnitude of the Geomagnetic Secular Variation
Phys. Rev. 78, 64 – Published 1 April, 1950
DOI: https://doi.org/10.1103/PhysRev.78.64
Phys. Rev. 78, 64 – Published 1 April, 1950
DOI: https://doi.org/10.1103/PhysRev.78.64