Norinelli, A. “Sulla "correzione Per La gravità" Nelle Misure Delle Bilance Magnetiche”. Annals of Geophysics 10, no. 1-2 (November 25, 1957): 129–132. Accessed November 30, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5883.