Ramos Real, F. J. & Tovar De La Fe, B. E. (2020). Revisiting electric utilities’ efficiency in the Southern African power pool, 1998-2009. Journal of Energy in Southern Africa,v. 31 (1), p. 1-13. https://doi.org/10.17159/2413-3051/2020/v31i1a7670
Ramos Real, F. J. & Tovar De La Fe, B. E. (2020). Revisiting electric utilities’ efficiency in the Southern African power pool, 1998-2009. Journal of Energy in Southern Africa,v. 31 (1), p. 1-13. https://doi.org/10.17159/2413-3051/2020/v31i1a7670