MIKHAILOV, A. V.; DE LA MORENA, B. A.; MIRO, G.; MARIN, D. A method for f0F2 monitoring over Spain using the El Arenosillo digisonde current observations. Annals of Geophysics, [S. l.], v. 42, n. 4, 1999. DOI: 10.4401/ag-3748. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3748. Acesso em: 1 oct. 2022.