1. Water reuse: overview of current practices and trends in the world with emphasis on EU states;Angelakis;Water Utility J.,2014
2. Water reclamation and reuse around the world;Jiménez,2008
3. Water Reuse: Potential For Expanding the Nation's Water Supply Through Reuse of Municipal Wastewater;National Research Council,2012
4. BIO by Deloitte, Optimising water reuse in the EU - Final report prepared for the European Commission (DG ENV). http://ec.europa.eu/environment/water/blueprint/pdf/BIO_IA%20on%20water%20reuse_Final%20Part%20I.pdf, 2015 (Accessed 11.04.2018).
5. Spanish Official State Gazette (BOE), Guidelines for Applying the R.D. 1620/2007 which sets the Legal Framework for the Reuse of Treated Wastewater. https://www.boe.es/boe/dias/2007/12/08/pdfs/A50639-50661.pdf, 2007 (Accessed 11.04.2018).