1. E.J.M. Boutkan, and A. Stikker , 2003 . Memstill gate keeping and strategic marketing focus points . Internal report on the membrane distillation desalination technology Memstill by EMF. Ecological Management Foundation (EMF), Amsterdam, The Netherlands.
2. B. Durham , 2003 . Desalination and Reuse . Vol. 2, Draft article. Unpublished.
3. Global Water Partnership (GWP) , 2003 . Global Water Partnership IWRM Toolbox . http://www.gwpforum.org.
4. International Year of Fresh Water: Water is everybody's business