1. Hall, D. O., Solar energy use through biology—Past, present and future. Solar Energy 1978, 22, 307–328.
2. USDOE International Energy Annual 2000; DOE/EIA-0219(2000); U.S. Department of Energy, Energy Information Administration: Washington, DC, 2002.
3. Goldemberg, J., Monaco, L., and Macedo, I., The Brazilian fuel-alcohol program. In Renewable Energy: Sources for Fuels and Electricity, Johansson, T., Kelly, H., Reddy, A., and Williams, R., Eds., Island Press: Washington, DC, 1993.
4. Rhodes, A. and Fletcher, D., Principles of Industrial Microbiology. Pergamon: New York, 1966.
5. Grohmann, K. and Himmel, M., Chapter 1: Enzymes for fuels and chemical feedstocks. In Enzymes in Biomass Conversion, Leatham, G. F.; Himmel, M. E., Eds. American Chemical Society: Washington, DC, 1991; Vol. 460, pp. 2–11.