Stamoulis, K. C., Z. Tsiligou, X. Aslanoglou, and K. G. Ioannides. 2019. “Variation of Both Tritium (3H) and Beryllium (7Be) Concentrations in Air, Rain and Humidity Samples Collected at Ioannina, North-Western Greece”. HNPS Advances in Nuclear Physics 26 (April):219-22. https://doi.org/10.12681/hnps.1823.