TY  - JOUR 
T1  - Fluoride characterization by principal component analysis in the hydrochemical facies of Serra Geral Aquifer System in Southern Brazil
JO  - Anais da Academia Brasileira de Ciências
A1  - Nanni, Arthur
A1  - Roisenberg, Ari
A1  - Fachel, Jandyra M.G.
A1  - Mesquita, Gilberto
A1  - Danieli, Cristiano
SN  - 0001-3765
UL  - 10.1590/S0001-37652008000400010
VL  - 80 
Y1  - 2008
PB  - Brasil 
ER  -