1. Bacovsky, D., Körbitz, W., Mittelbach, M., Wörgetter, M., 2007. Biodiesel production-technologies and European providers, Report to IEA Bioenergy Task 39, Biofuels, T39-B6, 104pp. Available from: .
2. Inhibition of cellulase, xylanase and b-glucosidase activities by softwood lignin preparations;Berlin;J. Biotechnol.,2006
3. Biofuels Digest, 2008. Mossi and Ghisolf to build 66 Mgy ethanol plant in Piedmont, Italy. 6 February. http://www.biofuelsdigest.com.
4. Multistep mechanism for the devolatization of biomass fast pyrolysis oils;Branca;Indust. Eng. Chem. Res.,2006
5. Chakrabortty, A., 2008. Internal World Bank study – biomass caused food crisis. http://www.guardian.co.uk/environment/2008/jul/03/biofuels.renewableenergy.