1. China University of Petroleum. Feasibility study of coal bed methane production in China. A technology report for the EU−China Energy and Environment Programme funded by the European Union and the National Development and Reform Commission of China (EuropeAid/120723/D/SV/CN), March 2008.
2. International Energy Agency. Coal mine methane in China: A budding asset with the potential to bloom. An assessment of technology, policy, and financial issues relating to CMM in China, based on interviews conducted at coal mines in Guizhou and Sichuan Provinces, February 2009.
3. Methane Separation from Coal Mine Methane Gas by Vacuum Pressure Swing Adsorption