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Giant sunspot clusters mark solar maximum. Nature 341, 384 (1989). https://doi.org/10.1038/341384b0
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DOI: https://doi.org/10.1038/341384b0
Nature volume 341, page 384 (1989)
Giant sunspot clusters mark solar maximum. Nature 341, 384 (1989). https://doi.org/10.1038/341384b0
Issue Date:
DOI: https://doi.org/10.1038/341384b0