References
- Carignan, R. & Neiff, J. J., 1992: Nutrient dynamics in the floodplain pounds of the Paraná River (Argentina) dominated by the water hyacinth Eichhomia crassipes. — Biochemistry 17: 85–121.
- Chambers, P. A., Prepas, E. E., Hamilton, H. R. & Bothwell, M. L., 1991: Current velocity and its effect on qualitic macrophytes in flowing water. — Ecological Application 1: 249–257.
- Colonnello, G., 1996: Aquatic vegetation of the Orinoco River Delta (Venezuela): An overview. — Hydrobiologia 340: 109–113.
- Vásquez, E. & Wilbert, W., 1992: The Orinoco: Physical, biological and cultural diversity of a major tropical alluvial rivers. — In: Calow, P. & Petts, G. E. (eds.): The Rivers Handbook, Hydrological and Ecological Principles: 448–471 pp. Blackwell Scientific Publications, Oxford.