Vieira, Rogério Faria, and Clibas Vieira. “Performance of Beans of Vigna and Phaseolus Genera in Associated Cropping With Maize Planted Simultaneously”. Pesquisa Agropecuaria Brasileira, vol. 31, no. 11, Nov. 1996, pp. 781-7, https://doi.org/10.1590/S1678-3921.pab1996.v31.4549.