1. European Commission, The EU climate and energy package. Available from: http://ec.europa.eu/clima/policies/brief/eu/index_en.htm [accessed 08.04.2014].
2. International Energy Agency, Energy efficiency. Available from: http://www.iea.org/aboutus/faqs/energyefficiency/ [accessed 08.04.2014].
3. ENOVA, Energibruk i ulike bygningstyper. Available from: http://www.enova.no/innsikt/rapporter/byggstatistikk-2011/4-energibruk-2011/43-energibruk-i-ulike-bygningstyper/43-energibruk-i-ulike-bygningstyper/490/1233/ [accessed 17.06.2014].
4. Statens Energimyndighet, Energianvändning i idrottsanläggningar. Available from: http://www.orsa.se/wk_custom/documents/%7B8a31df1e-7390-4221-8e5c-5a91111706dd%7D_energi_i_idrottsanlaggningar.pdf [accessed 17.06.2014].
5. Energy conservation strategies for sports centers: part B. Swimming pools;Trianti-Stourna;Energy Build,1998