Fermi, Enrico. “Guglielmo Marconi and the Propagation of Electromagnetic Waves in the Upper Atmosphere”. Il Colle di Galileo 6, no. 1 (April 19, 2017): 9–18. Accessed November 22, 2024. https://oajournals.fupress.net/index.php/cdg/article/view/8711.