Barros, Nelson Nogueira, et al. “Comparative Study With Sheep and Goats of the Digestibility of a Native Legume in the Semi-Arid Zone of Ceará, Brazil. II. In Vivo Digestibility of the Silage of Cassia Sp”. Pesquisa Agropecuaria Brasileira, vol. 27, no. 11, Nov. 1992, pp. 1551-5, https://doi.org/10.1590/S1678-3921.pab1992.v27.3803.