1. Energy crops;Karp,2011
2. Meeting the energy challenge—energy white paper. Department for trade industry (DTI);DTI,2008
3. UK bioenergy strategy. Department of energy and climate change (DECC);DECC,2012
4. UK biomass strategy;DEFRA,2007
5. European Commission. Directive 2009/28/EC of the European parliament and of the council of 23 April 2009 on the promotion of the use of energy from renewable sources. Official Journal of the European Union. European Commission, Brussels; 2009. p. 16–62