Costa, N.R. et al. 2017. Yield and nutritive value of the silage of corn intercropped with tropical perennial grasses. Pesquisa Agropecuaria Brasileira. 52, 1 (Mar. 2017), 63–73. DOI:https://doi.org/10.1590/S1678-3921.pab2017.v52.24311.