DE SANTIS, A.; GAYA-PIQUÉ, L.; DOMINICI, G.; MELONI, A.; TORTA, J. M.; TOZZI, R. ITalian Geomagnetic Reference Field (ITGRF): update for 2000 and secular variation model up to 2005 by autoregressive forecasting. Annals of Geophysics, [S. l.], v. 46, n. 3, 2003. DOI: 10.4401/ag-3422. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3422. Acesso em: 7 jul. 2022.