Oliveira, B.A.D. de et al. 2014. Identification of tropical grasses with the C-4 photosynthetic pathway by their leaf anatomy. Pesquisa Agropecuaria Brasileira. 8, 8 (Apr. 2014), 267–271. DOI:https://doi.org/10.1590/S1678-3921.pab1973.v8.17559.