Ayllon, R. M., M. R. Furlan, T. M. El Hajj, and P. S. C. Silva. “Th-232 Radiological Aspects of Carbonate Niobium Mining Waste Use As Agricultural Amendment”. Brazilian Journal of Radiation Sciences, vol. 11, no. 1A (Suppl.), July 2023, pp. 1-21, doi:10.15392/2319-0612.2023.2223.