1. UK Biomass Strategy, Department for Environment, Food and Rural Affairs, UK Government, London, UK, 2007.
2. Torrefaction of reed canary grass wheat straw and willow to enhance solid fuel qualities and combustion properties;Bridgeman;Fuel,2008
3. Method and apparatus for biomass torrefaction, manufacturing a storable fuel from biomass and producing offsets for the combustion products of fossil fuels and a combustible article of manufacture, United States Patent 20070266623, publication date 11/22/2007.
4. Process and apparatus for making a densified torrefied fuel, United States Patent 20030221363, publication date, 12/04/2003.
5. Process for converting ligneous matter of vegetable origin by torrefaction, and product obtained thereby, United States Patent 4553978.