@article{silva_simões-araújo_silva júnior_xavier_rumjanek_2012,  title={Genetic diversity of Rhizobia isolates from Amazon soils using cowpea (Vigna unguiculata) as trap plant},  volume={43},  ISSN={1517-8382},  url={https://doi.org/10.1590/S1517-83822012000200033},  DOI={10.1590/S1517-83822012000200033},  number={2},  journal={Brazilian Journal of Microbiology},  publisher={Sociedade Brasileira de Microbiologia},  author={Silva, F.V. and Simões-Araújo, J.L. and Silva Júnior, J.P. and Xavier, G.R. and Rumjanek, N.G.},  year={2012},  month={Apr},  pages={682–691} }