Lang, E; Schumann, P; Adler, S; Spröer, C; Sahin, N (April 2013). "Azorhizobium oxalatiphilum sp. nov., and emended description of the genus Azorhizobium". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 4): 1505–11. doi:10.1099/ijs.0.045229-0. PMID22888185.
Lang, E; Schumann, P; Adler, S; Spröer, C; Sahin, N (April 2013). "Azorhizobium oxalatiphilum sp. nov., and emended description of the genus Azorhizobium". International Journal of Systematic and Evolutionary Microbiology. 63 (Pt 4): 1505–11. doi:10.1099/ijs.0.045229-0. PMID22888185.