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A comparison between sunspot areas and sunspot number used in weather forecasting: AAnS 34/2 (1993)278–282
Yan-tian Gao, Yin-liang Huang, Yuan-fen FuVolume:
17
Year:
1993
Language:
english
DOI:
10.1016/0275-1062(93)90030-s
File:
PDF, 99 KB
english, 1993