Donagemma, Guilherme Kangussu, et al. “Characterization, Agricultural Potential, and Perspectives for Management of Light Soils in Brazil”. Pesquisa Agropecuaria Brasileira, vol. 51, no. 9, Oct. 2016, pp. 1003-20, doi:10.1590/S1678-3921.pab2016.v51.22572.