RP Parsons, and PD Vermeulen. “The Hidden Hydrology of Groenvlei, a Lacustrine Wetland on the Southern Cape Coast of South Africa RP Parsons and PD Vermeulen”. Water SA 43, no. 1 January (January 30, 2017). Accessed April 3, 2025. https://watersa.net/article/view/10790.