MARTÍNEZ PULIDO, A.; FRANCISCO GARAT, E. The ionospheric F2 region winter anomaly and its dependence on solar activity in the northern and southern hemispheres. Geofísica Internacional, [S. l.], v. 36, n. 2, p. 121–126, 1997. DOI: 10.22201/igeof.00167169p.1997.36.2.1296. Disponível em: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1296. Acesso em: 19 may. 2024.