%0 Journal Article %T Sally Gandar and Popo Mfubu %A Moult %A Kelley %J Journal of Power and Energy Engineering 电力与能源 %D 2019 %R 10.17159/2413-3108/2019/v0n68a6606 %U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1991-38772019000200005&lng=en&nrm=iso&tlng=en