Qin, Fei, et al. “The Impacts of Energy Prices and Technological Innovation on the Fossil Fuel-Related Electricity-Growth Nexus: An Assessment of Four Net Energy Exporting Countries”. Journal of Energy in Southern Africa, vol. 25, no. 3, Sept. 2014, pp. 46-60, doi:10.17159/2413-3051/2014/v25i3a2657.