1. Biomass pyrolysis: a state-of-the-art review;Babu;Biofuels, Bioproducts and Biorefining,2008
2. BP 2013 BP Statistical review of world energy June 2013 http://www.bp.com/content/dam/bp/pdf/statistical-review/statistical_review_of_world_energy_2013.pdf
3. Renewable fuels and chemicals by thermal processing of biomass;Bridgwater;Chemical Engineering Journal,2003