TY  - JOUR 
T1  - Optimization of the operative conditions for heteropolyacids synthesis through ion exchange
JO  - Materials Research
A1  - Matkovic, Silvana Raquel
A1  - Valle, Graciela Manuela
A1  - Briand, Laura Estefania
SN  - 1516-1439
UL  - 10.1590/S1516-14392005000300022
VL  - 8 
Y1  - 2005
PB  - Brazil 
ER  -