1. Sturm, G.P., Jr., Dooley, J.E., Thompson, J.S. Woodward, P.W., and Vogh, J.W. (1981) The Composition of Liquids from Coals of Different Rank’, ACS Symp. Series, 156, R.F. Sullivan (ed.), 1–37.
2. Dooley, J.E., Lanning, W.C., and Thompson, C.J. (1979) ‘Characterization Data for Syncrudes and Their Implication for Refining’, Adv. in Chem. Series, 179, 1–24.
3. Shimada, K., Sato, T., Yoshimura, Y., Hinata, A., Yoshitomi, S., Mares, A.C. and Nishifima, A. (1990) ‘Application of Zeolite-Based Catalyst to Hydrocracking of Coal-Derived Liquids’, National Chem. Lab. for Industry, Tsukuba, Ibaraki 305, (JAPAN), Fuel Proc. Technol., 25, 153–165.
4. Krichko, A.A., Malotetnev, A.S., Mau, O.A., Slvinskaya, J.J., Jacobsen, A.C. and Christensen, H. (1990) ‘Hydrogenation of Distillate Products from Coal Liquefaction’, Instit. for Fossil Fuels, Leninsky Prospect, Moscow, USSR, Fuel, 69, 344–348.
5. Perrot, J.M., Ayadai, A., Bastick, M. and Bastick, J. (1988) ‘Upgrading of Coal Pyrolysis Products: Catalytic Hydrocracking of Bicyclic Compounds’, Laboratoire de Physico-Chimie Industrielle-ENSIC, Fuel. Proc. Technol., 20, 223–232.