1. China Energy Outlook 2002, IEA, 2002.
2. Scenario Analysis on China Energy Demand in 2020, Energy Research Institute of NDRC,2003
3. Development and Utilization of Chinese Coal Resource during 10th Five-Year Period, China National Association of Coal Industry,2004
4. Report on the State of the Environment in China 2002.
5. Comprehensive Energy Strategy and Policy Study for China;Fei,2003