TY  - JOUR 
T1  - Activated sludge morphology characterization through an image analysis procedure
JO  - Brazilian Journal of Chemical Engineering
A1  - Perez, Y. G.
A1  - Leite, S. G .F.
A1  - Coelho, M. A. Z.
SN  - 0104-6632
UL  - 10.1590/S0104-66322006000300005
VL  - 23 
Y1  - 2006
PB  - Brasil 
ER  -