GREGORI, G. P.; DONG, W. J.; GAO, X. Q.; GIZZI, F. T. The separation of the geomagnetic field originated in the core, in the asthenosphere, and in the crust. Annals of Geophysics, [S. l.], v. 42, n. 2, 1999. DOI: 10.4401/ag-3713. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3713. Acesso em: 4 may. 2024.