Browsing Royal Observatory of Belgium and the Planetarium by Author "Vaquero J. M."
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Equivalence Relations Between the Cortie and Zürich Sunspot Group Morphological Classifications
Carrasco V. M. S.; Lefèvre L.; Vaquero J. M.Gallego M. C. et al. -
Revisiting the Sunspot Number. A 400-Year Perspective on the Solar Cycle
Clette F.; Svalgaard L.; Vaquero J. M.Cliver E. W. et al.