Rossi, C., P. Palangio, and F. Rispoli. “Investigations on Diurnal and Seasonal Variations of Schumann Resonance Intensities in the Auroral Region”. Annals of Geophysics 50, no. 3 (December 25, 2007): 301–311. Accessed April 27, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4421.