1. Is energy cost and accurate indicator of natural resource quality?;Stern;Ecol. Econ.,1999
2. A production function for Austria emphasizing energy;Tintner,1974
3. Engineering and econometric interpretations of energy-capital complementarity;Berndt;Am. Econ. Rev.,1979
4. Energy and technical progress;Hannon;Energy,1981
5. The Economic Growth Engine;Ayres,2009