Stamoulis, K. C., P. A. Assimakopoulos, and K. G. Ioannides. “Strontium-90 in Human Bones and Teeth in Greece: Measurements and Predictions Using an Age-Dependent Model”. HNPS Advances in Nuclear Physics, vol. 9, Feb. 2020, pp. 342-56, doi:10.12681/hnps.2796.