Pilakouta, M., Pappa, F. K., Patiris, D. L., Tsabaris, C. and Kalfas, C. A. (2019) “Radioactivity measurements in granite samples using NaI(Tl) spectrometry”, HNPS Advances in Nuclear Physics, 25, pp. 122–128. doi: 10.12681/hnps.1962.