Alexandre Melo Demattê, José, and Valdemar Antônio Demétrio. 1998. “Drainage Pattern in the Characterization of Soils and Its Relationship With Weathering Index”. Pesquisa Agropecuaria Brasileira 33 (1):87-95. https://doi.org/10.1590/S1678-3921.pab1998.v33.4819.