Tapoglou, E., Karatzas, G. P., Trichakis, I. C., & Varouchakis, E. A. (2014). A spatio-temporal hybrid neural network-Kriging model for groundwater level simulation. Journal of Hydrology, 519(PD), 3193-3203. https://doi.org/10.1016/j.jhydrol.2014.10.040