Richters, E.

Stimie, C. e.a., 2001. Hydro-institutional mapping in the Steelpoort River Basin, South Africa, (Working paper / IWMI no. 17) Colombo, Sri Lanka: International Water Management Institute (IWMI). Available at: https://nl.ircwash.org/sites/default/files/IWMI-2001-Hydro.pdf.