Gamma-ray shielding calculations using empirical formulas for build-up factor: application to a practical case To Professor J.J. FletcherP. Ondo Meye, C. Chaley, S.Y. Loemba Mouandza, B.C. Mabika Ndjembidouma et G.H. Ben-BolieRadioprotection, 57 1 (2022) 71-77DOI: https://doi.org/10.1051/radiopro/2021038
