1. G.R. Gavalas, Coal Pyrolysis, Elsevier (1985).
2. S.K. Chakrabartty and M.P. du Plessis, Modern Coal Pyrolysis; Information Series 95, Alberta Research Council, Canada (1985) and references therein.
3. S. Furfari, IEA Report No. ICTIS/TR20 (1983) and references therein.
4. E. Ekinci, A.E. Putun, M. Citiroglu, C.J. Lafferty and C.E. Snape, Proc. 1991 Int. Conf. on Coal Science (Newcastle). 520 and M. Citiroglu, Ph.D thesis, Istanbul Technical University (1993).
5. M.J. Roberts, D. Rue and F. Lau, Fuel, 1992, 71, 1433.