1. Kaupp, A., Goss, J.R.: Summary for policymakers. In: Intergovernmental Panel on Climate Change (ed.) Climate Change 2013: The Physical Science Basis, pp. 1–30. Cambridge University Press, Cambridge (2019)
2. Ernsting, A.: Biomass gasification and pyrolysis. http://www.biofuelwatch.org.uk/wp-content/uploads/Biomass-gasification-and-pyrolysis-formatted-full-report.pdf. (2015). Accessed 4 Jan 2021
3. Drake, H.L., Küsel, K., Matthies, C.: Acetogenic prokaryotes. In: Rosenburg, E., Delong, E.F., Lory, S., Stackebrandt, E., Thompson, F. (eds.) Prokaryotes, pp. 354–420. Springer, New York (2006)
4. Grimalt-Alemany, A., Skiadas, I.V., Gavala, H.N.: Syngas biomethanation: State-of-the-art review and perspectives. Biofuels Bioprod. Biorefining. 12, 139–158 (2018). https://doi.org/10.1002/bbb.1826
5. Reed, T.B. (1981) Biomass gasification : principles and technology. Noyes Data Corp (1981)