TAKALO, J. J. Temporal Distribution of Solar Cycle 24 Sunspot Groups: Comparison to Cycles 12-23. Annals of Geophysics, [S. l.], v. 64, n. 1, p. DM107, 2021. DOI: 10.4401/ag-8562. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/8562. Acesso em: 25 apr. 2024.