MAFUTA, C. (Editor); FORMO, R.K. (Editor); NELLEMANN, C. (Editor); LI, F. (Editor) (2011): Green Hills, Blue Cities: An Ecosystems Approach to Water Resources Management for African Cities. A Rapid Response Assessment. Arendal: United Nations Environment Programme (UNEP), United Nations Human Settlements Programme (UN-HABITAT), GRID-Arendal. URL [Accessed: 17.09.2013]. PDF
The case studies provided in this report emphasize the pivotal role of ecosystems in sustainable urban water supply and sanitation.