1. Joule III Programme, Clean Coal Technology R&D, Advanced Combustion and Gassification of Fuel Blends, Vol. II: Fuel Blends and Alkali Diagnostics, EUR 19285/II EN, ISBN 3-00-004658-5.
2. D. McIlveen-Wright, Electricity Generation From Wood, doctoral thesis, Energy Research Centre, University of Ulster, Coleraine, BTS2 1SA, 1995.
3. Development of computer models for the simulation of coal liquefaction processes;Willams,1988
4. ECLIPSE Process Simulator. Copyright 1992. Energy Research Centre, University of Ulster, Coleraine, BTS2 1SA. Tel.: +44-2870-324469.