J. F. de Araújo Neto, L. C. M. de L. Santos, and G. L. Santos, “Geology and genetic aspects of shear zone-related emerald deposits: an overview of emerald deposits in the Borborema Province, Northeastern Brazil”, Geol. USP. Sér. Cient., vol. 21, no. 2, pp. 19–39, Jul. 2021, doi: 10.11606/issn.2316-9095.v21-180467.