FORMOSO, M.L.L. et al. 1999. Brazilian Carbonatites: Studies of the Fazenda Varela (SC) and Catalão I (GO) Carbonatites and their Alteration Products. Pesquisas em Geociências. 26, 2 (dez. 1999), 21–43. DOI:https://doi.org/10.22456/1807-9806.21122.