Caliro, Stefano, Giovanni Chiodini, Rosario Avino, Carmine Minopoli, and Berardino Bocchino. “Long Time-Series of Chemical and Isotopic Compositions of Vesuvius Fumaroles: Evidence for Deep and Shallow Processes”. Annals of Geophysics 54, no. 2 (June 30, 2011). Accessed May 1, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5034.