1. Vares, V., Kask, U., Muiste, P., Pihu, T., and Soosaar, S. (2005). Biofuel User Manual, TutPress.
2. Rosendahl, L. (2013). Biomass Combustion Science, Technology and Engineering, Woodhead Publishing.
3. (2023, September 15). European Council—Conclusion, Brussels, Belgium, 2014. Available online: https://www.consilium.europa.eu/media/24561/145397.pdf.
4. Application concepts of shaped and unshaped refractories for combustion plants;Klinger;Proc. UNITECR,2007
5. Antonovič, V., Szczerba, J., Kerienė, J., Stonys, R., and Boris, R. (2017). Frontiers in Bioenergy and Biofuels, InTech.