1. Directive 2009/28/EC of the European parliament and of the Council of 23 April 2009;European Parliament;Off. J. Eur. Union,2009
2. Renewable energy progress report;European Commission;Rep. Comm. Eur. Parliam. Counc. Eur. Econ. Soc. Comm. Comm. Reg.,2015
3. The Brilliance of Bioenergy: in Business and Practice;Sims,2002
4. Biomass for Renewable Energy, Fuels, and Chemicals;Klass,1998
5. Bioenergy from Sustainable Forestry;Richardson,2002