Oliveira, Luiz Fernando Coutinho de, et al. “NUMERIC SOLUTION FOR OBTENTION OF THE LINE FLOW PROFILE IN NATURAL CHANNELS”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 28, no. 2, Dec. 2007, pp. 55-65, https://doi.org/10.5216/pat.v28i2.2996.