1. The role and future benefits of green energy;Midilli;International Journal of Green Energy,2007
2. The promotion of renewable energy sources: European experiences and steps forward;Zamfir;Economia Seria Management,2009
3. Main factors influencing the production of biofuels in Romania;Olteanu;Economia Seria Management,2009
4. Acaravci A. Structural breaks, electricity consumption and economic growth: evidence from Turkey. Romanian Journal of Economic Forecasting 2010; accessed at 11.03.2011] 〈www.ipe.ro/rjef/rjef2_10/rjef2_10_8.pdf〉.
5. Belke A, Dreger C, de Haan F. Energy consumption and economic growth new insights into the cointegration relationship. Ruhr Economic Papers 2010 [accessed 23.05.2012] 〈http://www.google.ro/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFcQFjAB&url=http%3A%2F%2Fwww.rwi-essen.de%2Fmedia%2Fcontent%2Fpages%2Fpublikationen%2Fruhr-economic-papers%2FREP_10_190.pdf&ei=0YTIT7mZL--N4gTQ0-0d&usg=AFQjCNG_gK6NkP0qp836dS_xdBoMuZ-kPg〉.