ZAHOREC, Pavol, Peter VAJDA, Juraj PAPČO, Sergio SAINZ-MAZA Aparicio, and Jorge PEREDA De Pablo. 2016. “Prediction of Vertical Gradient of Gravity and Its Significance for Volcano Monitoring – Example from Teide Volcano”. Contributions to Geophysics and Geodesy 46 (3), 203-20. https://doi.org/10.1515/congeo-2016-0013.