Franco, Avílio A., and Johanna Döbereiner. “Host Plant Specificity in <i>Rhizobium< I>- Bean Symbiosis and the Interference of Several Nutrients”. Pesquisa Agropecuaria Brasileira, vol. 2, no. 1, Apr. 2014, pp. 467-74, doi:10.1590/S1678-3921.pab1967.v2.17963.