Milan, P.A. et al. 1991. Selection of pasture legumes tolerant to aluminum and more efficient in phosphorus uptake. I. Native legumes. Pesquisa Agropecuaria Brasileira. 26, 1 (Jan. 1991), 119–124. DOI:https://doi.org/10.1590/S1678-3921.pab1991.v26.3170.