Deon, Magnus Dall'Igna, et al. “Sugarcane Yield and Quality under Irrigation With Sewage Treatment Plant Effluent”. Pesquisa Agropecuaria Brasileira, vol. 45, no. 10, Jan. 2011, pp. 1149-56, doi:10.1590/S1678-3921.pab2010.v45.8176.