E. Ntalla, A. Markopoulos, K. Karfopoulos, C. Potiriadis, A. Clouvas, and A. Savidou, “Development of a semi-empirical calibration method by using a LaBr3(Ce) scintillation detector for NORM samples analyses”, HNPS Adv Nucl Phys, vol. 27, pp. 199–202, Apr. 2021.