Viana, B.L. et al. 2018. Morphological characteristics and proportion of leaf blade tissues of elephant grass clones under sheep grazing. Pesquisa Agropecuaria Brasileira. 53, 11 (Dec. 2018), 1268–1275. DOI:https://doi.org/10.1590/S1678-3921.pab2018.v53.25426.