Ramalho, M.A.P., Silva, A.F. da and Aidar, H. (2014) “Maize and bean cultivars in monoculture and in two intercropping systems”, Pesquisa Agropecuaria Brasileira, 19(7), pp. 827–833. doi:10.1590/S1678-3921.pab1984.v19.15812.