1. Energy Engineering, Division of Energy Science, Luleå University of Technology, SE-97187 Luleå, Sweden
2. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden
3. Bioenergy2020+ GmbH, Wiener Straße 49, A-7540 Güssing, Austria
4. Institute of Chemical, Environmental & Bioscience Engineering, TU Vienna, A-1060 Vienna, Austria
5. Department of Applied Physics and Electronics, Umeå University, SE-90187 Umeå, Sweden
6. Department of Space, Earth, and Environment, Chalmers University of Technology, SE-41296 Gothenburg, Sweden