1. Kyoto protocol to the United Nations framework convention on climate change, United Nations;UNFCCC,1998
2. World energy outlook 2014;International Energy Agency (IEA),2014
3. European bioenergy outlook;AEBIOM,2013
4. The economic, environmental and strategic value of biomass;Carneiro;Renew Energy,2012
5. Mechanical durability and combustion characteristics of pellets from biomass blends;Gil;Bioresour Technol,2010