1. D.O. Hall, H.E. Mynick, and R.H. Williams, Alternative roles for biomass in coping with greenhouse warming. Science and Global Security, Vol. 2, 1991, pp. 1–39.
2. DeLuchi, M.A., Larson, E.D. and Williams, R.H., Hydrogen and methanol: production from biomass and use in fuel cell and internal combustion engines, a preliminary assessment. Presented at the IEEFJASME Joint Power Generation Conference, San Diego, CA, Oct., 1991.
3. Probstein, R.F. and Hicks, R.E., Synthetic Fuels, McGraw-Hill, New York, 1982.
4. Office of Policy, Planning and Analysis, Assessment of Costs and Benefits of Flexible and Alternative Fuel Use in the US Transportation Sector, Technical Rpt. 3: Methanol Production and Transportation Costs, US Dept. of Energy (DOE/PE-0093), Washington, DC, 1989.
5. Blok, K., Hendriks, C.A., Turkenburg, W.C. and Williams, R.H. Producing fuel and electricity from coal with low carbon dioxide emissions. Draft manuscript, Dept. of Science, Technology, and Society, University of Utrecht, Utrecht, The Netherlands, June 1991.