Carvalho, G.G.P. de et al. 2006. Nutritive value of sugarcane bagasse ammoniated with four urea doses. Pesquisa Agropecuaria Brasileira. 41, 1 (Jan. 2006), 125–132. DOI:https://doi.org/10.1590/S1678-3921.pab2006.v41.7114.