Filho, I. A. P., Oliveira, A. C. de and Cruz, J. C. (2000) “Corn and common bean intercropping-system with double and simple corn rows”, Pesquisa Agropecuaria Brasileira, 35(5), pp. 951–957. doi: 10.1590/S1678-3921.pab2000.v35.5853.