KERSLEY, L.; MALAN, D.; PRYSE, S. E.; CANDER, L. R.; BAMFORD, R. A.; BELEHAKI, A.; LEITINGER, R.; RADICELLA, S. M.; MITCHELL, C. N.; SPENCER, P. S. J. Total electron content - A key parameterin propagation: measurement and usein ionospheric imaging. Annals of Geophysics, [S. l.], v. 47, n. 2-3 Sup., 2004. DOI: 10.4401/ag-3286. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3286. Acesso em: 26 apr. 2024.