Geraldo, R. R., Paschuk, S. A., Barreto, R. C., Corrêa, J. N., Zahn, G. S., Cardoso da Silva, P. S., Malagi da Silva, A. C., Narloch, D. C., & Araujo, I. C. (2021). Application of semi-empirical model for the evaluation of radium activity in phosphogypsum used as component of clinker. Brazilian Journal of Radiation Sciences, 9(1A). https://doi.org/10.15392/bjrs.v9i1A.1518