TY  - JOUR 
T1  - Drop size in a liquid pulsed sieve-plate extraction column
JO  - Brazilian Journal of Chemical Engineering
A1  - Usman, M. R.
A1  - Sattar, H.
A1  - Hussain, S. N.
A1  - Muhammad, H.
A1  - Asghar, A.
A1  - Afzal, W.
SN  - 0104-6632
UL  - 10.1590/S0104-66322009000400006
VL  - 26 
Y1  - 2009
PB  - Brasil 
ER  -