ZAHOREC, P., PAPČO, J., VAJDA, P., GRECO, F., CANTARERO, M. and CARBONE, D. 2018. Refined prediction of vertical gradient of gravity at Etna volcano gravity network (Italy). Contributions to Geophysics and Geodesy. 48, 4 (Dec. 2018), 299-317. DOI:https://doi.org/10.2478/congeo-2018-0014.