Composite Mg II solar activity index for solar cycles 21 and 22
- 20 July 1993
- journal article
- Published by American Geophysical Union (AGU) in Journal of Geophysical Research: Atmospheres
- Vol. 98 (D7), 12809-12823
- https://doi.org/10.1029/93jd00421
Abstract
No abstract availableKeywords
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