Barbosa, Marco Aurélio Alves de Freitas, et al. “Performance of Beef Cattle on Pasture of Brachiaria Brizantha Cv. Xaraés Maintained at Different Sward Heights”. Semina: Ciências Agrárias, vol. 34, no. 6Supl2, Dec. 2013, pp. 4133-44, doi:10.5433/1679-0359.2013v34n6Supl2p4133.