Gentelini, A. L. (2008) “Biomass production of the aquatic macrophytes Eichhornia crassipes (water hyacinth) and Egeria densa (egeria) in organic fish farm effluent treatment system”, Semina: Ciências Agrárias, 29(2), pp. 441–448. doi: 10.5433/1679-0359.2008v29n2p441.