1. The Art, Science, and Technology of Charcoal production;Antal;Ind. Eng. Chem. Res.,2003
2. Bergman , P. C. A. A. R. Boersma R. W. H. Zwart J. H. A. Kiel Development of Torrefaction for biomass co-firing in existing coal-fired power stations, “Biocoal”,” ECN Report, ECN-C-05-013 2005
3. Bergman , P. C. A. J. H. A. Kiel Torrefaction for biomass upgrading,” 14th European Biomass Conference & Exibition,”Paris, France 2005
4. Torrefaction of Reed Canary Grass, Wheat Straw and Willow to Enhance Solid Fuel Qualities and Combustion Properties;Bridgeman;Fuel,2008