@article{fernandes_giacomelli_giovanela_vaz_szpoganicz_sierra_2009, title={Potentiometric acidity determination in humic substances influenced by different analytical procedures}, volume={20}, ISSN={0103-5053}, url={https://doi.org/10.1590/S0103-50532009000900021}, DOI={10.1590/S0103-50532009000900021}, number={9}, journal={Journal of the Brazilian Chemical Society}, publisher={Sociedade Brasileira de Química}, author={Fernandes, Andreia N. and Giacomelli, Cristiano and Giovanela, Marcelo and Vaz, Denise O. and Szpoganicz, Bruno and Sierra, Maria M. D.}, year={2009}, pages={1715–1723} }