TY  - JOUR 
T1  - Ultrasound-assisted extraction of Ca, K and Mg from in vitro citrus culture
JO  - Journal of the Brazilian Chemical Society
A1  - Arruda, Sandra C. C.
A1  - Rodriguez, Adriana P. M.
A1  - Arruda, Marco A. Z.
SN  - 0103-5053
UL  - 10.1590/S0103-50532003000300023
VL  - 14 
Y1  - 2003
PB  - Brasil 
ER  -