TY  - JOUR 
T1  - Towards an atomic level understanding of niobia based catalysts and catalysis by combining the science of catalysis with surface science
JO  - Anais da Academia Brasileira de Ciências
A1  - Schmal, Martin
A1  - Freund, Hans-Joachim
SN  - 0001-3765
UL  - 10.1590/S0001-37652009000200016
VL  - 81 
Y1  - 2009
PB  - Brasil 
ER  -