TY  - JOUR 
T1  - Preparation of silica with controlled pore sizes for enzyme immobilization
JO  - Brazilian Journal of Chemical Engineering
A1  - Trevisan, H.C.
A1  - Mei, L.H.I.
A1  - Zanin, G.M.
SN  - 0104-6632
UL  - 10.1590/S0104-66322000000100006
VL  - 17 
Y1  - 2000
PB  - Brasil 
ER  -