Mateus, G.P., Crusciol, C.A.C. and Costa, C. (2005) “Physical-chemical composition and ensiling potential of Giant Guinea sorghum in six different sowing dates”, Pesquisa Agropecuaria Brasileira, 40(9), pp. 935–942. doi:10.1590/S1678-3921.pab2005.v40.7047.