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© 1968 American Institute of Physics.
1968
American Institute of Physics
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W. R. Hindmarsh, F. J. Lowes, P. H. Roberts, S. K. Runcorn, S. Fred Singer; Magnetism and the Cosmos. Physics Today 1 August 1968; 21 (8): 81. https://doi.org/10.1063/1.3035126
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