1. Energy Independence and Security Act of 2007: A Summary of Major Provisions, CRS Report for Congress, Order Code RL34294, Dec 21, 2007.
2. Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review
3. Historical Developments in Hydroprocessing Bio-oils
4. Lehto, J.; Oasmaa, A.; Solantausta, Y.; Kyto, M.; Chiaramonti, D.Fuel Oil Quality and Combustion of Fast Pyrolysis Bio-oils, VTT Technology Report, 1987.
5. Vivarelli, S.; Tondi, G.Pyrolysis Oil: An Innovative Liquid Biofuel for Heating, The COMBIO Project, Presentation to the International Workshop-Bioenergy for a Sustainable Development, Casino Vina del Mar, Chile, November 2004.