POLLI, SILVIO. “PENETRAZIONE DELLE RADIAZIONI LUMINOSE NEL GHIACCIO E NELLA NEVE”. Annals of Geophysics 3, no. 3 (November 25, 1950): 371–377. Accessed April 26, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/6036.