1. Energy Mode 2008 (Swedish Energiläget 2008), ER 2008:15;Swedish Energy Agency,2008
2. Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings, 18.6.2010;Official Journal of the European Union,2010
3. Environmental objective 15 (A good built environment, interim target 6) (Energy use, etc., in buildings). www.miljomal.nu/english (accessed 30.11.10).
4. The path to a more energy-efficient Sweden (Swedish, Vägen till ett energieffektivare Sverige), SOU 2008:110, http://www.regeringen.se/sb/d/108/a/115855 (accessed 30.11.10).
5. Re-inventing air heating: convenient and comfortable within the frame of the Passive House concept;Feist;Energy and Buildings,2005