Scollo, S.; Prestifilippo, M.; Pecora, E.; Corradini, S.; Merucci, L.; Spata, G.; Coltelli, M. Eruption Column Height Estimation of the 2011-2013 Etna Lava Fountains. Ann. Geophys. 2014, 57 (2), S0214. https://doi.org/10.4401/ag-6396.