1. Gas producers and blast furnaces: theory and methods of calculation;Gumz,1950
2. Gasification: theory and application;Littlewood;Prog Energy Combust Sci,1977
3. Biomass gasification technology: the state of the art overview;Molino;J Energy Chem,2015
4. Progress in biomass gasification: an overview;Maniatis,2008
5. Lassi U, Wikmanin B. Biomass gasification to heat, electricity and biofuels. HighBio Project Publication 201. ISBN 978-951-39-4317-2.