Campos, J. R. da R., Silva, A. C., Silva, E. de B., & Vidal-Torrado, P. (2014). Extraction and quantification of exchangeable aluminum in Fibric Histosol. Pesquisa Agropecuaria Brasileira, 49(3), 207–214. https://doi.org/10.1590/S1678-3921.pab2014.v49.18498