Van der Vyver ML, Cowling RM, Mills AJ & Difford M. 2012. Spontaneous return of biodiversity in restored subtropical thicket: Portulacaria afra as an ecosystem engineer. Restoration Ecology 21:736–744.
Van der Vyver ML, Cowling RM, Mills AJ & Difford M. 2012. Spontaneous return of biodiversity in restored subtropical thicket: Portulacaria afra as an ecosystem engineer. Restoration Ecology 21:736–744.