[1]
R. M. R. Gualter, R. M. Boddey, N. G. Rumjanek, A. C. R. de Freitas, and G. R. Xavier, “Agronomic efficiency of rhizobia strains in cowpea cultivated in the Pre‑Amazon region, in Maranhão state”, PAB, vol. 46, no. 3, pp. 303–308, Jun. 2011, doi: 10.1590/S1678-3921.pab2011.v46.9771.