1. Categorization of unconventional tight light oil plays of the Western Canada Sedimentary Basin;Pedersen,2012
2. http://www.powerengineeringint.com/articles/print/volume-21/issue-7/regulars/new-analysis/in-the-dark-on-the-reality-of-blackouts.html.
3. The Myth of the Oil Crisis: Overcoming the Challenges of Depletion, Geopolitics, and Global Warming;Mills,2008
4. An assessment of world hydrocarbon resources;Rogner;Annu. Rev. Energy Environ.,1997
5. Shale gas revolution;Alexander;Schlumberger Oilfield Rev.,2011