TY  - JOUR 
T1  - Potentiometric quantification and speciation of oxygenated groups in humic substances using BEST7 software
JO  - Eclética Química
A1  - Vaz, Denise de Oliveira
A1  - Fernandes, Andreia Neves
A1  - Szpoganicz, Bruno
A1  - Sierra, Maria Marta D.
SN  - 0100-4670
UL  - 10.1590/S0100-46702010000400019
VL  - 35 
Y1  - 2010
PB  - Brasil 
ER  -