1. EUROSTAT. Energy statistics ‐ quantities annual data: EC Directorate General EUROSTAT ‐ European Commission 2010.
2. FAO Forestry Paper No. 42;Montalembert MR,1983
3. Occasional Paper 39;Arnold JEM,2003
4. IEA. Energy and poverty. In: International Energy Agency ed. World Energy Outlook 2002. Paris: IEA;2002.
5. World Health Organization. Addressing the Links between Indoor Air Pollution Household Energy and Human Health. Report from Washington Consultation. Washington DC 2002 56.