@article{jiménez_montaña_martínez_2011,  title={Characterization of free nitrogen fixing bacteria of the genus Azotobacter in organic vegetable-grown Colombian soils},  volume={42},  ISSN={1517-8382},  url={https://doi.org/10.1590/S1517-83822011000300003},  DOI={10.1590/S1517-83822011000300003},  number={3},  journal={Brazilian Journal of Microbiology},  publisher={Sociedade Brasileira de Microbiologia},  author={Jiménez, Diego Javier and Montaña, José Salvador and Martínez, María Mercedes},  year={2011},  month={Jul},  pages={846–858} }