Ioannides, K. G., Alexandropoulou, S., Papachristodoulou, C. A., Bletsas, S. and Stamoulis, K. C. (2019) “Temporal variation of soil radon emanation related to seismic activity”, HNPS Advances in Nuclear Physics, 25, pp. 73–76. doi: 10.12681/hnps.1992.