LOAT, Bui Van et al. Intrinsic Efficiency Calibration for Uranium Isotopic Analysis in Soil Samples. VNU Journal of Science: Mathematics - Physics, [S.l.], v. 33, n. 1, mar. 2017. ISSN 2588-1124. Available at: <https://js.vnu.edu.vn/MaP/article/view/4080>. Date accessed: 03 may 2024.