1. Derived, with substantial modifications and permission from Hall, C., P. Tharakan, J. Hallock, C. Cleveland, and M. Jefferson. 2003. Hydrocarbons and the evolution of human culture. Nature 426: 318–322. Updates on EROI are available in a special issue of the Journal Sustainability (2011) and Hall, C.A.S., J.G. Lambert, S.B. Balogh. 2014. EROI of different fuels and the implications for society. Energy Policy 64: 141–152.
2. Munasinghe, M. 2002. The sustainomics trans-disciplinary meta-framework for making development more sustainable: Applications to energy issues. International Journal of Sustainable Development 5: 125–182.
3. Interlaboratory Working Group. 2000. Scenarios for a clean energy future. Lawrence Berkeley National Laboratory LBNL-44029, Berkeley. http://www.ornl.gov/ORNL/Energy_Eff/CEF.htm .
4. Hall, C.A.S., D. Lindenberger, R. Kummel, T. Kroeger, and W. Eichhorn. 2001. The need to reintegrate the natural sciences with economics. BioScience 51: 663–673.
5. Tharakan, P.J., T. Kroeger, and C.A.S. Hall. 2001. Twenty-five years of industrial development: a study of resource use rates and macro-efficiency indicators for five Asian countries. Environmental Science & Policy 4: 319–332.