C. L. Tonello, A. F. Branco, C. Y. Tsutsumi, L. R. Bueno, R. C. Serrano, and S. M. Coneglian, “Supplementation on beef cattle performance in pastures: season of the year”, Semina: Ciênc. Agrár., vol. 32, no. 1, pp. 373–382, Mar. 2011.