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2. Swedish Energy Agency. Prisblad för biobränslen, torv m.m. 4/2009; http://webbshop.cm.se/System/TemplateView.aspx?p=Energimyndigheten&view=default&cat=/Faktablad&id=ffbd2c1049724f31a3bf54b8ef762ca2(accessed on Jan 14, 2011) .
3. Metal contamination in recovered waste wood used as energy source in Sweden
4. Berg, M.; Andersson, A.; Andersson, C.; von Bahr, B.; Ekvall, A.; Eriksson, J.; Eskilsson, D.; Harnevie, H.; Hemström, B.; Jungstedt, J.; Keihäs, J.; Kling, Å.; Mueller, C.; Sieurin, J.; Tullin, C.; Wikman, K.Combustion of Waste Wood, Second Phase of the Collaboration Project on Waste Wood Combustion, Värmeforsk Report 820, 2003, (in Swedish, summary in English);http://www.varmeforsk.se/rapporter?action=show&id=1565(accessed on Jan 14, 2011).
5. Andersson, C.; Högberg, J.Fouling and Slagging Problems at Recovered Wood Fuel Combustion, Värmeforsk Report 733, 2001, (in Swedish, summary in English);http://www.varmeforsk.se/rapporter?action=show&id=1654(accessed on Jan 14, 2011).