1. DIRECTIVE 2009/28/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 23 April 2009, Official Journal of the European Union; 2009. p. 16–63.
2. Cleveland CJ, Ayres RU. Encyclopedia of energy: Ec-Ge. Elsevier Academic Press; 2004.
3. Chapter 7 – Thermal conversion: combustion, in biomass for renewable energy, fuels, and chemicals;Klass,1998
4. A review of recent laboratory research and commercial developments in fast pyrolysis and upgrading;Butler;Renew Sustain Energy Rev,2011
5. Pyrolytic lignin removal for the valorization of biomass pyrolysis crude bio-oil by catalytic transformation;Gayubo;J Chem Technol Biotechnol,2010