Borges, R.C., Marques, L.M., Mahler, C.F. and Bernedo, A.V.B. 2018. Determination of the concentration of Ce, La, Sm and Eu in a phosphogypsum stack, in Imbituba city, Santa Catarina, Brazil. Eclética Química. 43, 3 (Oct. 2018), 37–44. DOI:https://doi.org/10.26850/1678-4618eqj.v43.3.2018.p37-44.