TY  - JOUR 
T1  - Variational calculus (optimal control) applied to the optimization of the enzymatic synthesis of ampicillin
JO  - Brazilian Archives of Biology and Technology
A1  - Ribeiro, Marcelo Perencin de Arruda
A1  - Giordano, Roberto de Campos
SN  - 1516-8913
UL  - 10.1590/S1516-89132005000400003
VL  - 48 
Y1  - 2005
PB  - Brasil 
ER  -