Calabrese, S., Scaglione, S., Milazzo, S., D’Alessandro, W., Bobrowski, N., Giuffrida, G. B., Tedesco, D., Parello, F., & Yalire, M. (2015). Passive degassing at Nyiragongo (D.R. Congo) and Etna (Italy) volcanoes. Annals of Geophysics, 57. https://doi.org/10.4401/ag-6637