Media type: E-Article Title: The water–food–energy nexus: an introduction to nexus concepts and some conceptual and operational problems Contributor: Allan, Tony; Keulertz, Martin; Woertz, Eckart Published: Informa UK Limited, 2015 Published in: International Journal of Water Resources Development, 31 (2015) 3, Seite 301-311 Language: English DOI: 10.1080/07900627.2015.1029118 ISSN: 0790-0627; 1360-0648 Origination: Footnote: