M. du Preez, J. Beukes, and E. van Dyk, “A cost-benefit analysis of concentrator photovoltaic technology use in South Africa: A case study”, J. energy South. Afr., vol. 24, no. 4, pp. 2–11, Nov. 2013, doi: 10.17159/2413-3051/2013/v24i4a3140.