Alves, M.E. and Lavorent, A. 2004. Remaining phosphorus and sodium fluoride pH in soils with different clay contents and clay mineralogies. Pesquisa Agropecuaria Brasileira. 39, 3 (Mar. 2004), 241–246. DOI:https://doi.org/10.1590/S1678-3921.pab2004.v39.6763.