Pergola, N., F. Marchese, V. Tramutoli, C. Filizzola, and M. Ciampa. “Advanced Satellite Technique for Volcanic Activity Monitoring and Early Warning”. Annals of Geophysics 51, no. 1 (February 18, 2008): 287–301. Accessed March 28, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3049.