1. Energy Information Administration, Renewable Energy Annual 1998, data for 1997, DOE/EIA_0603(98)/1 and National Renewable Energy Laboratory additional data including the generation of electricity from independent power producers and non-utility generators that is not included in the Energy Information Administration data.
2. Bioenergy in transition;Overend;J. Energy Eng.,1996
3. Biomass: A Growth Opportunity in Green Energy and Value Added Products, in two volumes,1999
4. Energy Information Administration, http://www.eia.doe.gov/pub/energy.overview/aer98/txt/aer1003.txt.
5. National Research Council, Board on Biology, Commission on Life Sciences, “Biobased Industrial Products: Priorities for Research and Commercialization”, National Academic Press, Washington, DC, 1999. In particular, this document performs an analysis in Appendix A of the Case study of lignocellulosic ethanol processing on pp. 115–120.