Gentelini, A. L.; Gomes, S. D.; Feiden, A.; Zenatti, D.; Sampaio, S. C.; Coldebella, A. Biomass Production of the Aquatic Macrophytes Eichhornia Crassipes (water Hyacinth) and Egeria Densa (egeria) in Organic Fish Farm Effluent Treatment System. Semina: Ciênc. Agrár. 2008, 29, 441-448.