M. Baratieri, P. Baggio, L. Fiori and M. Grigiante, “Biomass as an Energy Source: Thermodynamic Constraints on the Performance of the Conversion Process,” Bioresource Technology, Vol. 99, No. 15, 2008, pp. 7063-7073.
 T. A. Milne, F. Agblevor, M. Davis, et al., “A Review of Chemical Composition of Fast Pyrolysis Oils,” In: A. V. Bridgwater, Ed., Developments in Thermochemical Biomass Conversion, London, Blackie Academic & Professional, 1997, pp. 409-424.
 V. A. Yakovlev, S. A. Khromova, O. V. Sherstyuk, et al., “Development of New Catalytic Systems for Upgraded Bio-Fuels Production from Bio-Crude-Oil and Biodiesel,” Catalysis Today, Vol. 144, No. 3-4, 2009, pp. 362-366.
 L. Garcia, R. French, S. Czernik, et al., “Catalytic Steam Reforming of Bio-Oils for the Production of Hydrogen: Effects of Catalyst Composition,” Applied Catalysis A: General, Vol. 201, No. 2, 2000, pp. 225-239.
 F. Mahfud, H. Melia′n-Cabrera, I. R. Manurung and H. J. Heeres, “Upgrading of Flash Pyrolysis Oil by Reactive Distillation Using a High Boiling Alcohol and Acid,” Trans IChemE, Part B, Process Safety and Environmental Protection, Vol. 85, No. B5, 2007, pp. 466-472.
 B. Tuya, M. Chaala, C. R. Garcia-Perez, et al., “Colloidal Properties of Bio-Oils Obtained by Vacuum Pyrolysis of Softwood Bar Characterization of Water-Soluble and Water-Insoluble Fraction,” Energy Fuels, Vol. 18, No. 3, 2004, pp. 704-712.
 P. K. Rout, M. K. Naik, S. N. Naik, et al., “Supercritical CO2 Fractionation of Bio-oil Produced from Mixed Biomass of Wheat and Wood Sawdust,” Energy & Fuels, Vol. 23, No. 12, 2009, pp. 6181-6188.
 H. Y. Cui, T. Wang, F. J. Wang, et al., “Kinetic Study on One-pot Synthesis of Dimethyl Carbonate in Supercritical CO2 Conditions,” Industrial & Engineering Chemistry Research, Vol. 43, No. 24, 2004, pp. 7732-7739.
 H. Wang, R. H. Liu, C. M. Zhang and J. D. Luan, “An Experimental Study on Determination of the Water Content in Bio-Oil by Karl-Fischer Titration,” Renewable Energy, Vol. 3, No. 1, 2005, pp. 17-20.
 Y. K. Matsui, Y. S. Fukuda and T. K. Inoue, “Effect of Natural Organic Matter on Powdered Activated Carbon Adsorption of Trace Contaminants: Characteristics and Mechanism of Competitive Adsorption,” Water Research, Vol. 37, No. 18, 2003, pp. 4413-4424.
 C. Pelekani and V. L. Snoeyink, “Competitive Adsorption between Atrazine and Methylene Blue on Activated Carbon: The Importance of Pore Size Distribution,” Carbon, Vol. 38, No. 10, 2000, pp. 1423-1436.