Rocha, Omar Cruz, et al. “Chemical and Hydrophysical Attributes of an Oxisol under Coffee Intercropped With Brachiaria in the Cerrado”. Pesquisa Agropecuaria Brasileira, vol. 51, no. 9, Oct. 2016, pp. 1476-83, doi:10.1590/S1678-3921.pab2016.v51.22487.