1. DURO J A, PADILLA E. Inequality across countries in energy intensities: An analysis of the role of energy transformation and final energy consumption. Energy Policy, 2011,33(3):474-479.
2. 高天明, 沈镭, 刘立涛, 等. 中国煤炭资源不均衡性及流动轨迹. 自然资源学报, 2013,28(1):92-103.
3. [ GAO T M, SHEN L, LIU L T, et al. The inequality of China's coal resources and its flow paths. Journal of Natural Resources, 2013,28(1):92-103.]
4. 成升魁, 徐增让, 沈镭. 中国省际煤炭资源流动的时空演变及驱动力. 地理学报, 2008,63(6):603-612.
5. [ CHENG S K, XU Z R, SHEN L. Spatial-temporal process and driving force of interprovincial coal flowing in China. Acta Geographica Sinica, 2008,63(6):603-612.]