Bloise, Raphael Minotti, et al. “Fertility of Soils in the Region of the Tranzamazonic Highway. I. Neutralization of the Exchangeable Aluminum in a Red-Yellow Podzolic Soil”. Pesquisa Agropecuaria Brasileira, vol. 12, no. 1, Apr. 2014, pp. 71-74, doi:10.1590/S1678-3921.pab1977.v12.16788.