Young, J. M. (2003). The genus name <i>Ensifer</i> Casida 1982 takes priority over <i>Sinorhizobium </i>Chen et al. 1988, and <i>Sinorhizobium morelense</i> Wang et al. 2002 is a junior synonym of <i>Ensifer adhaerens</i> Casida 1982. Is the combination '<i>Sinorhizobium adhaerens</i>' (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. <i> Int.J.Syst.Evol.Microbiol. </i><b> 53 </b>: 2107-2110 .
De Lajudie, P., Willems, A., Pot, B., Dewettinck, D., Maestrojuan, G., Neyra, M., Collins, M. D., Dreyfus, B., Kersters, K., Gillis, M. (1994). Polyphasic taxonomy of Rhizobia: emendation of the genus <i>Sinorhizobium</i> and description of <i>Sinorhizobium meliloti</i> comb. nov., <i>Sinorhizobium saheli</i> sp. nov., and <i>Sinorhizobium teranga</i> sp. nov. <i> Int.J.Syst.Bacteriol. </i><b> 44 </b>: 715-733 .

Young, J. M. (2003). The genus name <i>Ensifer</i> Casida 1982 takes priority over <i>Sinorhizobium </i>Chen et al. 1988, and <i>Sinorhizobium morelense</i> Wang et al. 2002 is a junior synonym of <i>Ensifer adhaerens</i> Casida 1982. Is the combination '<i>Sinorhizobium adhaerens</i>' (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. <i> Int.J.Syst.Evol.Microbiol. </i><b> 53 </b>: 2107-2110 .
Trüper, H. G., De' Clari, L. (1997). Taxonomic note: necessary correction of specific epithets formed as substantives (nouns) "in apposition". <i> Int.J.Syst.Bacteriol. </i><b> 47 </b>: 908-909 .
De Lajudie, P., Willems, A., Pot, B., Dewettinck, D., Maestrojuan, G., Neyra, M., Collins, M. D., Dreyfus, B., Kersters, K., Gillis, M. (1994). Polyphasic taxonomy of Rhizobia: emendation of the genus <i>Sinorhizobium</i> and description of <i>Sinorhizobium meliloti</i> comb. nov., <i>Sinorhizobium saheli</i> sp. nov., and <i>Sinorhizobium teranga</i> sp. nov. <i> Int.J.Syst.Bacteriol. </i><b> 44 </b>: 715-733 .

Martens, M., Dawyndt, P., Coopman, R., Gillis, M., De, V. P., Willems, A. (2008). Advantages of multilocus sequence analysis for taxonomic studies: a case study using 10 housekeeping genes in the genus <i>Ensifer</i> (including former <i>Sinorhizobium</i>). <i> Int J Syst Evol Microbiol </i><b> 58 </b> ( Pt 1 ): 200-214 .
Young, J. M. (2003). The genus name <i>Ensifer</i> Casida 1982 takes priority over <i>Sinorhizobium </i>Chen et al. 1988, and <i>Sinorhizobium morelense</i> Wang et al. 2002 is a junior synonym of <i>Ensifer adhaerens</i> Casida 1982. Is the combination '<i>Sinorhizobium adhaerens</i>' (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. <i> Int.J.Syst.Evol.Microbiol. </i><b> 53 </b>: 2107-2110 .
Chen, W. X., Yan, G. H., Li, J. L. (1988). Numerical taxonomic study of fast-growing soybean rhizobia and a proposal that <i>Rhizobium</i> <i>fredii</i> be assigned to <i>Sinorhizobium</i> gen. nov. <i> Int.J.Syst.Bacteriol. </i><b> 38 </b>: 392-397 .