M. Cyulinyana and P. Ferrer, “Heat efficiency of a solar trough receiver with a hot mirror compared to a selective coating”, S. Afr. J. Sci., vol. 107, no. 11/12, p. 7 pages, Nov. 2011, Accessed: Nov. 23, 2024. [Online]. Available: https://sajs.co.za/article/view/9952