Silva, G. F. da, & Graça, M. C. (2018). Gamma-ray attenuation caused by rainforest dispersion compared to Vegetation Index: estimates on the effects in airborne gamma-spectrometry data – example from the State of Rondônia, Amazonia, Brazil. Journal of the Geological Survey of Brazil, 1(1), p. 1–9. https://doi.org/10.29396/jgsb.2018.v1.n1.1