{{Cite conference| publisher = IWA| pages = –2011, http://www.iwaefficient.com/2013/| editors = IWA (ed.)| last1 = Seidl| first1 = Martin| last2 = Trinh| first2 = Claire Bich-Thuy| last3 = Imbert| first3 = Dominique| last4 = Hubert| first4 = Gilles| title = Dual water supply system as a way to better resources utilization. The case of Paris.| booktitle = 7th IWA Specialist conference on efficient use and management of water: ”Water Efficiency Strategies for Difficult Times.” 22 - 25 October 2013 Paris, France, http://www.iwaefficient.com/2013/| location = Paris, France| date = 2013-10}}