BELLUIGI, A. “ELECTROMAGRNETIC FIELD PRODUCED BY A CABLE(CARRYNG AN ALTERNATING CURRENT) PLACED ON A GROUND WITH AN INTERSTRATUM”. Annals of Geophysics 9, no. 3 (November 25, 1956): 349–370. Accessed March 29, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5611.