M. Rufini, D. de P. Oliveira, A. Trochmann, B. L. Soares, M. J. B. de Andrade, and F. M. de S. Moreira, “Bradyrhizobium strains in symbiosis with dwarf pigeon pea under greenhouse and field conditions”, PAB, vol. 49, no. 3, pp. 197–206, May 2014, doi: 10.1590/S1678-3921.pab2014.v49.18849.