Russell I. A. (2003) Changes in the distribution of emergent aquatic plants in a brackish South African estuarine-lake system African Journal of Aquatic Science 28: 103–122

Keywords: Aqautic plans, Estuary, Lake, Wilderness, Management, Monitoring, Phragmites australis, Juncus Kraussii

Claassens L., Barnes R. S. K., Wasserman J., Lamberth S. J., Miranda N. A. F., van Niekerk L. & Adams J. B. (2020) Knysna estuary health: ecological status, threats, and options for the future African Journal of Aquatic Science 45: 65–82

Keywords: Alein species, conservation, ecological health, macrosalgal blooms, management, monitoring, current ecological state

Coetsee C & Wigley B (2013) Virgilia divaricata may facilitate forest expansion in the afrotemperate forests of the southern cape, South Africa Koedoe 55: 8

Keywords: afrotemperate forest, fire, nitrogen, soils, Virgilia divaricata, african, conservation, research, protected areas, science, management, policy, biology, ecology