Tarouco, Camila Peligrinotti, et al. “Weed Interference Periods on in the Initial Growth of Eucalyptus”. Pesquisa Agropecuaria Brasileira, vol. 44, no. 9, Nov. 2010, pp. 1131-7, doi:10.1590/S1678-3921.pab2009.v44.2202.