La Monica, Mariangela, Silvio Giuseppe Rotolo, and Franco Foresta Martin. “Petrographic and Spectroscopic (FT-IR) Study of Western Mediterranean Obsidians Geological Sources and of a Lithic Collection from Ustica Island (Sicily)”. Annals of Geophysics 62, no. 1 (July 22, 2019): VO13. Accessed April 25, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/8058.