A. A. de Jesus, E. M. da Costa, R. S. A. Nóbrega, L. C. Diógenes, and J. C. A. Nóbrega, “Growth and nodulation of Enterolobium contortisiliquum grown in soils under different soil use systems in southwest of Piaui State”, Pesq. flor. bras., vol. 37, no. 92, pp. 545–553, Dec. 2017, doi: 10.4336/2017.pfb.37.92.1460.