1. http://ec.europa.eu/eurostat/web/environmental-data-centre-on-natural-resources/natural-resources/energy-resources/energy-from-biomass.
2. http://www.physicalgeography.net/fundamentals/6d.html.
3. Coda Zabetta E, Barišić V, Peltola K, Hotta A. Foster wheeler experience with biomass and waste in CFBs. 33rd Clearwater Conference Clearwater, Florida USA. June 1-5, 2008.
4. Database of the Institute of Power Engineering and Turbomachinery Silesian University of Technology, Poland.
5. Możliwości współspalania osadów z oczyszczalni ścieków z węglem w kotłach rusztowych (Polish);Wandrasz;Gospodarka Paliwami i Energią,2000