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Geophysical Research Institution of the University of Copenhagen. Nature 169, 441 (1952). https://doi.org/10.1038/169441c0
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DOI: https://doi.org/10.1038/169441c0
Nature volume 169, page 441 (1952)
Geophysical Research Institution of the University of Copenhagen. Nature 169, 441 (1952). https://doi.org/10.1038/169441c0
Issue Date:
DOI: https://doi.org/10.1038/169441c0