Okello, Denis, Ole J Nydal, Karidewa Nyeinga, and Eldad J K Banda. “Experimental Investigation on Heat Extraction from a Rock Bed Heat Storage System for High Temperature Applications”.
Journal of Energy in Southern Africa 27, no. 2 (July 20, 2016): 30–37. Accessed April 5, 2025.
https://energyjournal.africa/article/view/1339.