TY  - JOUR 
T1  - Characterization of free nitrogen fixing bacteria of the genus Azotobacter in organic vegetable-grown Colombian soils
JO  - Brazilian Journal of Microbiology
A1  - Jiménez, Diego Javier
A1  - Montaña, José Salvador
A1  - Martínez, María Mercedes
SN  - 1517-8382
UL  - 10.1590/S1517-83822011000300003
VL  - 42 
Y1  - 2011
PB  - Brasil 
ER  -