Carvalho, M. M., Freitas, V. de P., & Xavier, D. F. (2002). Initial flowering, dry matter yield and nutritive value of tropical forage grasses under natural shading. Pesquisa Agropecuaria Brasileira, 37(5), 717–722. https://doi.org/10.1590/S1678-3921.pab2002.v37.6394