1. Biofuel from thermochemical conversion of renewable resources: a review;Goyal;Renew Sustain Energy Rev,2008
2. Potential of hydrogen from oil palm biomass as a source of renewable energy worldwide;Kelly-Yong;Energy Policy,2007
3. Zmierczak WW, Miller JD. Process for catalytic conversion of lignin to liquid bio-fuels and novel bio-fuels. U.S. Patent 20,080,050,792; 2008.
4. Jones CW, Agrawal PK. Hydrogen production from biomass. U.S. Patent 20,080,103,344; 2008.
5. Biopower watch. Available on http://assets.panda.org/downloads/biomassreportfinal.pdf [accessed 10.09.10].