Borghi, Emerson, and Carlos Alexandre Costa Crusciol. “Corn Yield, Spacing and Intercropping Modalities With <i>Brachiaria brizantha< i> In No-Tillage System”. Pesquisa Agropecuaria Brasileira, vol. 42, no. 2, Feb. 2007, pp. 163-71, doi:10.1590/S1678-3921.pab2007.v42.7551.