1. STEM. Energiläget i siffror. Energy in Sweden. Facts and figures 2003. Statens energimyndighet—Swedish Energy Agency, Eskilstuna, Sweden, 2003.
2. Schmitz N, editor. Bioethanol in Deutschland. Schriftenreihe, Nachwachsende Rohstoffe Band 21, Meó Consulting Team, Köln, Germany: Landwirtschaftsverlag GmbH, Münster; 2003.
3. Agroetanol. www.agroetanol.se (30th September 2003). Agroetanol AB, Norrköping, Sweden.
4. Baff. www.baff.info (30th September 2003). BAFF—BioAlcohol Fuel Foundation, Örnsköldsvik, Sweden.
5. Haupt D, Nordström F, Niva M, Bergenudd L, Hellberg S. The determination of regulated and some unregulated exhaust gas components from ethanol blended diesel fuels in comparison with neat diesel and ethanol fuel. KFB-Meddelande 1999:5, KFB—Kommunikationsforskningsberedningen, Stockholm, Sweden, 1999.