ROSA, G.; FERREIRA, A. de O.; RODRIGUEZ, D. G.; BASTOS, R. O. Determination of the activity concentration of 226Ra, 232Th, 40K and the concentration of 222Rn in soil samples of the Campos Gerais region (Paraná). Brazilian Journal of Radiation Sciences, [S. l.], v. 9, n. 1A, 2021. DOI: 10.15392/bjrs.v9i1A.1240. Disponível em: https://bjrs.org.br/revista_33014/index.php/REVISTA/article/view/1240. Acesso em: 25 dec. 2024.