Costa, I.S.L., da Silva, G.F. and Ferreira, M.V. 2019. Application of Zipf’s law to estimate undiscovered gold endowment in the Quadrilátero Ferrífero Province, Brazil. Journal of the Geological Survey of Brazil. 2, 3 (Dec. 2019), 165–172. DOI:https://doi.org/10.29396/jgsb.2019.v2.n3.3.