Drudi, Ary, et al. “Influence of Frequency and Cutting Height on Some Regrowth Characteristics of Andropogon Grass”. Pesquisa Agropecuaria Brasileira, vol. 21, no. 4, Apr. 2014, pp. 409-16, doi:10.1590/S1678-3921.pab1986.v21.14776.