Mills AJ, Cowling RM, Fey MV, Kerley GIH, Donaldson JS, Lechmere-Oertel RG, Sigwela AM, Skowno AL & Rundel P. 2005. Effects of goat pastoralism on ecosystem carbon storage in semi-arid thicket, Eastern Cape, South Africa. Austral Ecology 30:797–804.
Mills AJ, Cowling RM, Fey MV, Kerley GIH, Donaldson JS, Lechmere-Oertel RG, Sigwela AM, Skowno AL & Rundel P. 2005. Effects of goat pastoralism on ecosystem carbon storage in semi-arid thicket, Eastern Cape, South Africa. Austral Ecology 30:797–804.