G. Eleftheriou, C. Tsabaris, D. L. Patiris, E. Androulakaki, M. Kokkoris, and R. Vlastou, “Gamma spectrometry technique for the determination of residence time in Submarine Groundwater Discharges”, HNPS Adv Nucl Phys, vol. 18, pp. 155–161, Nov. 2019.