TY  - JOUR 
T1  - Characterization and quantification by gas chromatography of free steroids in unsaponifiable matter of vegetable oils
JO  - Journal of the Brazilian Chemical Society
A1  - Bezerra, Kelly da S.
A1  - Antoniosi Filho, Nelson R.
SN  - 0103-5053
UL  - 10.5935/0103-5053.20130288
VL  - 25 
Y1  - 2014
PB  - Brasil 
ER  -