1. Handbook Biomass Gasification;Knoef,2012
2. Biomass Gasifier Tars: Their Nature, Formation and Conversion;Milne,1998
3. Tar formation in a fluidised-bed gasifier: impact of fuel properties and operating conditions;van Paasen;Petten,2004
4. Formation of polycyclic aromatic hydrocarbons and their growth to soot - a review of chemical reaction pathways;Richter;Prog. Energy Combust. Sci.,2000
5. Review of Novel Catalysts for Biomass Tar Cracking and Methane Reforming;Gerber,2007