Nishi, C.Y.M. and Hungria, M. (1996) “Effects of soybean [Glycine max (L.) Merrill] inoculation in a soil with established population of Bradyrhizobium with strains SEMIA 566, 586, 587, 5019, 5079 and 5080”, Pesquisa Agropecuaria Brasileira, 31(5), pp. 359–368. doi:10.1590/S1678-3921.pab1996.v31.4492.