1. Mineral depletion with special references to petroleum;Adelman;Review of Economics and Statistics,1990
2. Comment on: R.W. Bentley, ‘Global oil & gas depletion’;Adelman;Energy Policy,2003
3. Alberta Chamber of Resources (ARC). 2003. Oil sands technology roadmap. Workshop Draft, www.ptac.org/cho/dl/OSTRM.pdf, June 10.
4. Middle East oil production to peak within next decade;Bakhtiari;Oil & Gas Journal,2003
5. Global oil and gas depletion: an overview;Bentley;Energy Policy,2002