M. C. M. de Almeida, J. U. Delgado, R. L. Silva, R. Poledna, R. S. Gomes, and A. L. Ferreira Filho, “Uncertainty evaluation in activity measurements with HPGe using two relative methods”, Braz. J. Rad. Sci., vol. 10, no. 4, pp. 1–13, Dec. 2022.