DAVID, T.; BAKARE, N.; ADEBESIN, B. Moderate storms: a class of rarely investigated geomagnetic storms. International Journal of Natural and Applied Sciences, [S. l.], v. 3, n. 4, p. 537–543, 2009. DOI: 10.4314/ijonas.v3i4.36230. Disponível em: https://www.ajol.info/index.php/ijonas/article/view/36230. Acesso em: 15 oct. 2026.