1. Adekola O, Morardet S, de Groot R, Grelot F (2008) The economic and livelihoo value of provisioning services of the Ga-Mampa wetland, South Africa. Proceedings of the 13th IWRA World Water Congress, Montpellier, France, 1–4 September 2008
2. Bikangaga S, Picchi MP, Focardi S, Rossi C (2007) Perceived benefits of littoral wetlands in Uganda: a focus on the Nabugabo wetlands. Wetlands Ecol Manage 15:529–535. doi: 10.1007/s11273-007-9049-3
3. Bullock A, Gilman K, McCartney M, Waughray D, Blyth K, Andrews A (1998) Hydrological strategy to develop and manage African wetland resources for sustainable agricultural use. Wetland characterisation and classification for sustainable agricultural development. FAO/SAFR, Rome (Part II)
4. Campbell B (ed) (1996) The miombo in transition: woodlands and welfare in Africa. Centre for International Forestry Research (CIFOR), Bogor, p 266
5. de Groot RS, Wilson MA, Boumans RMJ (2002) A typology for the classification, description and valuation of ecosystem functions, goods and services. Ecol Econ 41(3):393–408. doi: 10.1016/S0921-8009(02)00089-7