Seganfredo, Milton Antônio, and Pedro Alberto Selbach. “Response of Centrosema to Inoculation With Local Bradyrhizobium Sp. Strains”. Pesquisa Agropecuaria Brasileira, vol. 25, no. 4, Apr. 2014, pp. 539-43, doi:10.1590/S1678-3921.pab1990.v25.13452.