Rezende, Pedro Milanez de. “Maximization of Soybean Exploration. I. Effects of the Cut-off at 60 Days in the Production of Hay and Yields from Regrowth”. Pesquisa Agropecuaria Brasileira, vol. 19, no. 3, Apr. 2014, pp. 329-36, doi:10.1590/S1678-3921.pab1984.v19.15461.