JANESELLI, R. “Celle Convettive E Variazioni Periodiche Del Gradiente Verticale Del Campo Elettro-Atmosferico”. Annals of Geophysics 22, no. 1 (November 25, 1969): 85–101. Accessed August 13, 2022. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5082.