Geomagnetism Unit Staff, . (1999) “Geomagnetism at Istituto Nazionale di Geofisica 1995-1998 activity report prepared for the 1999 XXIII IUGG, Birmingham, UK”, Quaderni di Geofisica, 6. Available at: https://collane-editoriali.ingv.it/index.php/qdg/article/view/1546 (Accessed: 23 October 2026).