TY  - JOUR 
T1  - Electrochemical characterization of thin passive films on Nb electrodes in H3PO4 solutions
JO  - Journal of the Brazilian Chemical Society
A1  - Biaggio, Sonia R.
A1  - Bocchi, Nerilso
A1  - Rocha-Filho, Romeu C.
A1  - Varela, Francisco E.
SN  - 0103-5053
UL  - 10.1590/S0103-50531997000600008
VL  - 8 
Y1  - 1997
PB  - Brasil 
ER  -