1. Ellenberg H (1988) Vegetation ecology of central Europe. Cambridge, England: Cambridge University Press.
2. Walter H, Breckle SW (1989) Ecological systems of the Geobiosphere. Berlin: Springer.
3. Mitsch WJ, Gosselink JG (2007) Wetlands. New York: Wiley. 582 p.
4. Keddy P (2000) Wetland ecology, principles and conservation. Cambridge, UK. : Cambridge University Press.
5. The ecology of interfaces: Riparian zones;RJ Naiman;Annual Review of Ecology and Evolution and Systematics,1997