Nat Gopalswamy, Alejandro Lama, Seiji Yashiro, Steven Nunes, and Russell A. Howard: Coronal Mass Ejection Activity during Solar Cycle 23[1] 16 Aralık 2006 tarihinde Wayback Machine sitesinde arşivlendi.
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Nat Gopalswamy, Alejandro Lama, Seiji Yashiro, Steven Nunes, and Russell A. Howard: Coronal Mass Ejection Activity during Solar Cycle 23[1] 16 Aralık 2006 tarihinde Wayback Machine sitesinde arşivlendi.