Campos, P. M., Lacerda, M. P. C., Silva, C. L. da, Sá, M. A. C. de, & Sousa, D. M. G. de. (2011). The internal drainage as a differentiation factor in Oxisols of Distrito Federal, Brazil. Pesquisa Agropecuaria Brasileira, 45(3), 306–314. https://doi.org/10.1590/S1678-3921.pab2010.v45.2395