1. Weisz, P. B., 2004, Basic choices and constraints on long-term energy supplies, Physics Today, July, pp. 47-52
2. Bartlett, A. A., 2004, Thoughts on long-term energy supplies: Scientists and the silent lie, Physics Today, July, pp. 35-55.
3. Edwards, J. D., 2001, Twenty-first century energy, American Association of Petroleum Geologists, Memoir 34, pp. 21–34.
4. Weisz, P. B., 2004, Basic choices and constraints on long-term energy supplies, Physics Today, July, p. 47.
5. Derived from Edwards, J. D., 2001, Twenty-first century energy, American Association of Petroleum Geologists, Memoir 34, pp. 21–34.