1. Fenhann J, Kilde NA, Runge E, Winther M, Boll Illerup J. Forskningscenter Risø. National Environmental Research Institute, 1997, Inventory of emissions to the air from Danish Sources, 1972–1995
2. Virksomhedsorienteret helhedsvurdering af energibesparelser i industrien;Schleisner,1995
3. External costs related to power production technologies ExternE National Implementation for Denmark;Schleisner,1997
4. Vindmølleindustrien. Danske vindmøllers energibalance, Baggrundsinformation fra vindmølleindustrien (3), December 1995