1. Ban Ki-moon 2013 Secretary-General's opening remarks at Budapest Water Summit www.un.org/sg/statements/index.asp?nid=7184
2. The global economics of water: is water a source of comparative advantage;Debaere;American Economic Journal: Applied Economics,2014
3. JMP 2014 Progress on drinking water and sanitation: 2014 update WHO-UNICEF Joint Monitoring Programme for Water and Sanitation www.wssinfo.org/fileadmin/user_upload/resources/JMP_report_2014_webEng.pdf
4. IPCC 2013 Fifth assessment report - climate change 2013: the physical science basis https://www.ipcc.ch/report/ar5/wg1/