Case study in Syria

http://www2.gtz.de/ecosan/download/ecosan-pds-015-Syria-HaranAlAwamied.pdf

Case studies Greywater treatment in Germany

http://www.otterwasser.de/english/concepts/lande.htm

http://www2.gtz.de/ecosan/download/ecosan-pds-004-Germany-Luebeck-Flintenbreite.pdf

General information about Constructed wetlands

http://www.bodenfilter.de/engdef.htm

US EPA Manual

http://www.epa.gov/ordntrnt/ORD/NRMRL/Pubs/2001/wetlands/625r99010.pdf

EU Guide “Extensive Wastewater Treatment Processes�

EU project SWAMP focussing on natural wastewater treatment

http://www.swamp-eu.org/