1. How prosperous were the Romans? Evidence from Diocletian’s price edict;Allen,2009
2. Does reform work? An econometric survey of the reform–growth puzzle;Babecky;Journal of Comparative Economics,2011
3. Energy Outlook 2030;BP,2011
4. Statistical Review of World Energy 2011;BP,2011
5. Energy Outlook 2030;BP,2012