1. Andronov, E.E., Roumyantseva, M.L., Sagoulenko, V.V., et al., Effect of the Host Plant on the Genetic Diversity of a Natural Population of Sinorhizobium meliloti, Russ. J. Genet., 1999, vol. 35, no. 10, pp. 1358–1366.
2. Andronov, E.E., Roumiantseva, M.L., and Simarov, B.V., Genetic Diversity of a Natural Population of Sinorhizobium meliloti Revealed in Analysis of Cryptic Plasmids and ISRm2011-2 Fingerprints, Russ. J. Genet., 2001, vol. 37, no. 5, pp. 494–499.
3. Andronov, E.E., Roumiantseva, M.L., Onichtchouk, O.P., et al., Symbiotic and Genetic Diversity of Rhizobium galegae Isolates Collected from the Galega orientalis Gene Center in the Caucasus, Appl. Env. Microbiol., 2003, vol. 69, no. 2, p. 1067.
4. Behringer, J.E., R-Factor Transfer in Rhizobium leguminosarum, J. Gen. Microbiol., 1974, vol. 84, pp. 188–198.
5. Bromfield, E.S.P., Barran, L.R., and Wheatcroft, R., Relative Genetic Structure of a Population of Rhizobium meliloti Isolated Directly from Soil and from Nodules of Alfalfa (Medicago sativa) and Sweet Clover (Melilotus alba), Mol. Ecol., 1995, vol. 4, no. 2, pp. 183–188.