De Paula, E. B., de Araújo, M. T. F., Poledna, R., Delgado, J. U. and Leiras, A. (2017) “Development of a methodology for the analysis of radionuclide impurities in radiopharmaceuticals by gamma-ray spectrometry”, Brazilian Journal of Radiation Sciences, 5(3-A). doi: 10.15392/bjrs.v5i3.300.