Giongo, A.; Ambrosini, A.; Freire, J. R. J.; Zanettini, M. H. B.; Passaglia, L. M. P. Amplification of 16S RRNA Gene Sequences to Differentiate Two Highly Related Bradyrhizobia Species. PAB 2007, 42 (9), 1361-1364. https://doi.org/10.1590/S1678-3921.pab2007.v42.7705.