POTENZA, F. “Progetto Di Uno Spettroeliografo Per Lyman-Alfa Con Telescopio Per Satelliti”. Annals of Geophysics 16, no. 3 (November 25, 1963): 453–455. Accessed November 30, 2021. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5242.