^Mousavi SA, Willems A, Nesme X, de Lajudie P, Lindström K (2015). "Revised phylogeny of Rhizobiaceae: proposal of the delineation of Pararhizobium gen. nov., and 13 new species combinations". Syst Appl Microbiol. 38 (2): 84–90. doi:10.1016/j.syapm.2014.12.003. PMID25595870.
Beyhaut, Elena; Tlusty, Becki; van Berkum, Peter; Graham, Peter H (2006). "Rhizobium giardinii is the microsymbiont of Illinois bundleflower (Desmanthus illinoensis (Michx.) Macmillan) in midwestern prairies". Canadian Journal of Microbiology. 52 (9): 903–907. doi:10.1139/w06-051. ISSN0008-4166. PMID17110983.
Krishnan, Hari B.; Emerich, David W. (2009). Nitrogen fixation in crop production. Madison, WI: American Society of Agronomy. ISBN978-0-89118-170-5.
Zotov, V. S.; Punina, N. V.; Khapchaeva, S. A.; Didovych, S. V.; Melnichuk, T. N.; Topunov, A. F. (2013). "A new taxonomic marker of nodule bacteria of the Rhizobium genus and its evolution". Russian Journal of Genetics: Applied Research. 3 (2): 102–113. doi:10.1134/S2079059713020111. ISSN2079-0597.