1. H. Hopf, Vorwort in Lit. [2], S. XXIII.
2. Biorefineries—Industrial Processes and Products (Hrsg.: ), Wiley-VCH, Weinheim, 2007.
3. National Renewable Energy Laboratory (NREL); http://www.nrel.gov/biomass/biorefinery.html. Originalzitat: “A biorefinery is a facility that integrates biomass conversion processes and equipment to produce fuels, power, and chemicals from biomass. The biorefinery concept is analogous to today's petroleum refineries, which produce multiple fuels and products from petroleum. Industrial biorefineries have been identified as the most promising route to the creation of a new domestic biobased industry.”
4. European Technology Platform for Sustainable Chemistry, Industrial Biotechnology Section, 2005, http://www.suschem.org.
5. D. Peters, Fachagentur nachwachsende Rohstoffe, Anbau und Nutzung Nachwachsender Rohstoffe in Deutschland, 2005, http://www.fnr.de.