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* [[Image:eawag compendium cover.png|right|110px|link=http://www.eawag.ch/forschung/sandec/publikationen/sesp/dl/Compendium_2nd_Ed_Lowres_1p.pdf]] The material on this page was adapted from: <br> Elizabeth Tilley, E. et al. Lukas Ulrich, Christoph Lüthi, Philippe Reymond and Christian Zurbrügg (20082014). [httphttps://www.eawag.ch/organisationen/abteilungendepartment/sandec/publikationen/publications_sesppublications/downloads_sespcompendium/compendium_high.pdf Compendium of Sanitation Systems and Technologies], published by [http://www.eawag.ch/organisation/abteilungen/sandec/index_EN Sandec], the Department of Water and Sanitation in Developing Countries of [http://www.eawag. ch/index_EN Eawag: The ], the Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.  * [http://www.sswm.info/sites/default/files/reference_attachments/TILLEY%20et%20al%202014%20Compendium%20of%20Sanitation%20Systems%20and%20Technologies%20-%202nd%20Revised%20Edition.pdf Alternative Compendium link]. The 2nd edition publication is available in English. French and Spanish are yet to come.